Negligent Security Expert Witnesses
Negligent security expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on negligent security. The negligent security expert witness listings on this page are typically from fields/areas of expertise such as: Education & Schools, Firearms & Ballistics, Hotel & Restaurant, Jails & Prisons, Law Enf & Criminal Justice, Police Practices & Procedures, Premises Liability, School Safety, Security, and Slip Trip & Fall.
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Elizabeth J Dumbaugh, CPP
Major, US Army Reserve-Premises Liability Expert
THG Consultants
Security, Premises Liability
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Apartment Security, Parking Lots, Parking Garages, Terrorism, Bars/Lounges/Nightclubs, Security Guards, Transportation Security, Hotel Security, Security Management, Violent Crimes, Inadequate/Negligent Security, Special Event Security, Workplace Violence, Policy & Procedures, Physical Security
Elizabeth Dumbaugh, CPP, is a premises liability and security consultant and testifying expert for THG Consultants, a firm whose consultants have conducted more than 1400 forensic evaluations of premises located in 46 states as well as in Puerto Rico, the Virgin Islands, Columbia, South America and Istanbul, Turkey. Elizabeth consults regarding security and safety aspects of commercial property management and conducts security audits for various types of commercial premises, including but not limited to: multi-family housing, resorts, hotels, retail and office space, nightclubs, and convenience stores.
She is board-certified in security management, having earned the prestigious designation of Certified Protection Professional (CPP) from ASIS International, where she serves on the ASIS Leadership and Management Practices Council providing global security best practices to ASIS members. She is a Crime Prevention Practitioner, a designation awarded by the Florida Attorney General’s ...
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Drew Neckar, MBA, CPP, CHPA
Security executive and consultant
COSECURE Enterprise Risk Solutions
Security, Premises Liability
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Healthcare/Hospital Security, Bar/Nightclub Security, Parking Lot Security, Campus Safety, School Security, Negligent Security, CPTED, Crime Prevention, Crime Foreseeability, Use of Force, Security Officers/Guards, Workplace Violence, Security Assessment, Risk Assessment, Security Training/Education
Drew Neckar is a board-certified security management professional who over his 20+ year career has managed safety and security programs for companies operating in the healthcare, higher education, financial services, and nightclub industries.
In 2014 Drew founded Security Advisors Consulting Group, a full-service security consulting firm that has provided strategic advice on improvement of security and violence prevention programs to companies throughout the United States and internationally.
Drew and security programs he has managed have been recognized with awards including:
Mayo Clinic Health Systems' Security Department was awarded the “Program of Distinction” award from the International Association of Healthcare Security and Safety (IAHSS) while under Drew's leadership.
Mayo Clinic Health Systems' Security Department was named to Security Magazine’s “Security 500” as one of the top Security programs while under Drew's leadership.
Named Global Security Consultant of the Ye...
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Charles Ahmad, CPP, PCI, PSP
Security Expert - Apartment Complex Focus
Group Nine Risk Consulting
Premises Liability, Security
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Premises Liability for Negligent Security, Use of Force, Apartment Complexes, Violent Crime, Security Guards, Gas Stations, Security Negligence
Charlie is the founding partner of Group Nine Risk Consulting, a firm specializing in security risk management, forensic consulting, and security training. He founded Group Nine Risk Consulting following a long and successful military and federal law enforcement career that spanned nearly 30 years.
Charlie was employed by the U.S. Marshals Service (USMS) for 25 years, retiring as a Supervisory Deputy U.S. Marshal in January 2022. During his career with the USMS, he was responsible for numerous aspects of security risk management including exterior perimeters, access control, security assessments, managing security personnel, security awareness training, video surveillance, protective intelligence, and workplace violence prevention at several federal courthouses around the country. His work with the USMS often involved proactively identifying, investigating, and mitigating threats to the life and safety of hundreds of federal judicial personnel across numerous federal facilities an...
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William S. Marcisz, JD, CPP, CHPA
Security & Workplace Violence Expert Witness
Strategic Security Management Consulting, Inc.
Tucson, Arizona
Security, Premises Liability
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Hospital & Healthcare Security, Negligent Security, Workplace Violence, Crime Foreseeability, Mall-Retail-Store Security, Hotel & Hospitality Security, Apartment Security, Parking Lots-Garage Security, Violent Crimes, Casino Security, Bars & Nightclubs, Hospital Security Expert, Healthcare Security Expert, Convenience Stores
William S. Marcisz ("Bill"), is President & Chief Consultant for Strategic Security Management Consulting, Inc., providing litigation support to both Plaintiffs and Defense clients including: Case Review & Assessment, Affidavits, Expert Testimony, Investigations and Forensic Consultation on standards of care and best practices in matters pertaining to Premises Liability, Negligent Security, Security Use of Force, and related Civil Litigation with an emphasis on Hospital/Healthcare Security and Workplace Violence. Trial testimony has aided in attaining Jury Awards up to $13.5 Million.
As a Forensic Security Consultant, Mr. Marcisz has reviewed and provided opinions in matters involving violent crime, including active shooter incidents involving claims with high liability exposure, and involving organizations, hospitals, and businesses with national and worldwide brand recognition.
Mr. Marcisz has 40 years of combined experience in private security and complex litigation. Mr. Marc...
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Dean P. Morris, MBA, CPP, CHPA
Healthcare Security Executive and Consultant
Omega Risk Advisory
Valencia, California
Security, Premises Liability
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Healthcare/Hospital Security, Parking Operations, Office/Commercial Security, Campus Safety, Workplace Violence, Use of Force, Negligent Security, Regulatory Compliance, Disaster Management, HICS, Policy and Procedures, Training, Risk Assessments, Threat Assessment and Management, Security Technology, Security Operations
Dean P. Morris is a board-certified security expert with more than 40 years of experience as a hospital system security executive, consultant, and military police supervisor. A U.S. Air Force veteran, he has served in senior leadership roles with leading healthcare organizations including City of Hope, CommonSpirit/Dignity Health, and Kaiser Permanente/Securitas Security Services. He holds board certifications as a Certified Protection Professional (CPP) and Certified Healthcare Protection Administrator (CHPA). He is also a California licensed private investigator.
Mr. Morris specializes in hospital security operations, with extensive experience in the assessment, design, and implementation of physical security programs. His expertise includes managing armed and unarmed security teams (proprietary and contract), developing standardized policies and procedures, deploying advanced security technologies, leading investigations, overseeing K-9, executive protection, and behavioral thr...
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Gary R. Coburn
Restaurant Concept Innovations
San Juan Capistrano, California
Hotel & Restaurant, Slip Trip & Fall
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Slip Trip & Fall, OSHA, burns, choking, food safety, dram shop, alcohol, negligent security, employee safety, commercial kitchen, customer injuries, ADA, management, franchise, ownership, permitting, training, investing, accounting, premises liability
Award-winning restaurant executive, operator, consultant, and expert witness with over 45 years of experience in the restaurant and hospitality industry. Extensive background in restaurant operations, hospitality management, franchising, staffing and training systems, operational safety, commercial kitchen design/build, concept development, business viability, and restaurant-related disputes.
Over the course of his career, Mr. Coburn has helped create, open, operate, reposition, and advise hundreds of restaurant, bar, hospitality, and foodservice concepts throughout the United States ranging from independent restaurants to regional and national brands. His experience includes service as an owner, operator, franchisor, consultant, President, Chief Operating Officer, and General Manager.
Mr. Coburn remains actively involved in restaurant operations and concept development through Restaurant Concept Innovations and current projects including Lily’s Donuts & Pops and Lily’s Donuts & C...
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Don McGray, CPP
Premises Liability/Negligent Security
Next Step Solutions, Inc.
Huntington Beach, California
Premises Liability, Security
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Security Guard operations, Crime Foreseeability, Negligent Security, Premises Liability, Security Procedures, Threat Assessments, Security Policies, Security Training, Use of Force, Negligent Supervision, School Security, Guard Force Management, Apartments, Commercial Properties, Security Standards, HOA's, Risk Assessment
Don is the founder of Next Step Solutions, Inc., an independent security management consulting firm established in 2014. He conducts security risk assessments, writes policies and procedures, assists in developing security personnel, and provides assistance in the procurement of security products and services. He also provides expert opinions and testimony for plaintiff and defense cases involving security negligence, inadequate security, and premises liability.
Don is board-certified in Security Management, having earned the Certified Protection Professional (CPP) certification through ASIS International in 2015. Don is a current mentor instructor in the annual CPP Review Course, conducted in Los Angeles each year. Don has provided mentoring in the course for the past ten years with a focus on litigation support.
Don retired as a Lieutenant Colonel from the US Air Force Reserve after thirty-two (32) years of part-time service, including nine (9) years in the enlisted ranks as a...
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William S. Marcisz, JD, CPP, CHPA
Security & Workplace Violence Expert Witness
Strategic Security Management Consulting, Inc.
California
Security, Premises Liability
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Hospital & Healthcare Security, Negligent Security, Workplace Violence, Crime Foreseeability, Mall-Retail-Store Security, Hotel & Hospitality Security, Apartment Security, Parking Lots-Garage Security, Violent Crimes, Casino Security, Bars & Nightclubs, Hospital Security Expert, Healthcare Security Expert, Convenience Stores
William S. Marcisz ("Bill"), is President & Chief Consultant for Strategic Security Management Consulting, Inc., providing litigation support to both Plaintiffs and Defense clients including: Case Review & Assessment, Affidavits, Expert Testimony, Investigations and Forensic Consultation on standards of care and best practices in matters pertaining to Premises Liability, Negligent Security, Security Use of Force, and related Civil Litigation with an emphasis on Hospital/Healthcare Security and Workplace Violence. Trial testimony has aided in attaining Jury Awards up to $13.5 Million.
As a Forensic Security Consultant, Mr. Marcisz has reviewed and provided opinions in matters involving violent crime, including active shooter incidents involving claims with high liability exposure, and involving organizations, hospitals, and businesses with national and worldwide brand recognition.
Mr. Marcisz has 40 years of combined experience in private security and complex litigation. Mr. Marc...
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Michael Glasser, Court Qualified & Board Certified, CPP, PSP, PCI, CISSP, CSPM, CEH, CNDA
Premises Security - Physical, Electronic, Policy
Glasser Security Group LLC
Connecticut
Security, Premises Liability
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Negligent Security, CCTV, Surveillance, Lock, Access Control, Video Surveillance, Corporate Security, Alarms, Alarm, Door Hardware, Intrusion, CPTED, Burglary, Robbery, Security Guard, Security Management, Premises Liability, Premises Security, Security System, Lock Picking
Michael Glasser’s professional background includes two decades of professional experience providing security consulting, systems design and program management for major corporations, organizations and executive residences. He has provided security assessments, CPTED design, systems design, specification development, technical consultation, IT integration consultation, physical penetration test, physical security red team, expert witness, systems installation and project management services. Projects have been located in North America, South America, Europe, Middle East, Asia and additional locations around the world. Board Certified, Court Qualified,
Areas of Expertise
Physical & Electronic Security Design, Consulting, Maintenance and Operations
Physical Security Hardware and Technology
Security Doors and Hardware
Physical Security Red Team
Premises Security
Security Management
Information Security Policy and Technology
Operational Security Penetration Testing
Pro...
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Lance R Foster
Highly qualified and experienced security expert
Security Associates, Inc.
Clearwater, Florida
Security
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Negligent security, Premises liability, Bank security, Parking lot security, Apartment security, Bar/nightclub security, Casino security, Cruise line security, Office security, Condo security, Retail security
Strong qualifications in the field of security with memberships in the most prestigious professional associations and certifications from each. Retained by plaintiffs and defendants in 300+ negligent security lawsuits, 100+ depositions, and 63 trials. Testimony never struck or restricted. Trained in Crime Prevention Through Environmental Design.
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Charles M Johnson, PSP, FCP
Board Certified - 30 Years Security Experience
NGA Security Advisors
Florida
Security, Premises Liability
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Apartment, Condo, Security Management, Video Surveillance, Cameras, Access Control, Gate Control, Security Guards, Fire Alarm, Sprinkler System, Negligent Security, Florida, Georgia, FS 768.0706, CPTED, Visitor Management, Casino, Gaming, Commercial Real Estate, Crime Prevention
Charles is a Board-Certified Physical Security Professional (PSP®) & a Florida designated Crime Prevention Through Environmental Design Practitioner (FCP) with more than 30 years of experience in the physical security industry.
In his current role as the Founder & CEO of NGA Security Advisors he provides consultation to clients in a variety of industries. He conducts onsite technology, vulnerability & CPTED (Crime Prevention Through Environmental Design) assessments and then provide detailed reports identifying current technology that exists, potential new technology improvements, areas of vulnerability and where CPTED can be applied to deter crime.
Charles can assist with Negligent Security, Premises Liability, Personal Injury cases where Security Management, Crime Prevention, Physical Access Control, Cameras, Video Surveillance, Biometrics, Artificial Intelligence, Vehicle Entrance, Pedestrian Entrance, Exterior Barriers, Fire, Burglar & Sprinkler Alarms are being called into ...
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Robin C. Nagele, M.A.
Security Expert Witness | Premises Liability
Nagele Security Advisors, LLC
Dunedin, Florida
Security, Law Enf & Criminal Justice
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Premises Liability, Negligent Trng, FS 768.0706, Security Audit, Corporate Security, Negligent Security, Apartment, Hotel Security, Risk Assessment, Active Shooter, Standard of Care, Multifamily, Access Control, Guard Management, Crime Prevention, Workplace Violence, Security Management, Risk Assessment, Security Trng, Crime Foreseeab
Robin C. Nagele, M.A., is the Principal and Founder of Nagele Security Advisors, LLC, a U.S. Small Business Administration-certified Service-Disabled Veteran-Owned Small Business (SDVOSB) and Veteran-Owned Small Business (VOSB), specializing in forensic security consulting and expert witness testimony in civil litigation matters involving premises liability, negligent security, and physical security standard of care.
A retired U.S. Army Military Police Corps Sergeant Major (E-9) and Bronze Star Medal recipient, Mr. Nagele attained the Army's highest enlisted rank in an unprecedented 18 years, a distinction achieved by fewer than 1% of all enlisted soldiers, before completing 21 years of honorable service. He served as NCOIC of Nuclear Physical Security Operations, holding formal Army certification in Intrusion Detection System Operations (172 hours) including Alpha, Bravo, Charlie, and Delta alert classifications. He is also a certified U.S. Army Drill Sergeant and Combat Veteran, ...
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Mark J Lang
Negligent Security & Police Practices Expert, MCJ
Investigations HQ
Orlando, Florida
Law Enf & Criminal Justice, Security
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Negligent Security, Police Practices, Security Policies and Procedures, Premises Liability, Police Standards and Procedures, Criminal Investigations, Security Management, Law Enforcement Operations, Patient Elopement, Hospital Security, Behavior Health Security, CPTED, Healthcare Security, Workplace Violence in Health
Mark J. Lang, MCJ, CPP, CHPA, is the Owner and Principal Consultant of Investigations HQ, LLC, a Florida-based private investigations and security consulting firm. With more than 40 years of experience in law enforcement, healthcare security, private investigations, and security management, Mr. Lang is recognized as an expert in negligent security, premises liability, hospital security, law enforcement practices, and police standards and procedures.
Mr. Lang retired from the Orange County Sheriff's Office (Florida) as a Captain assigned to the Special Investigations Division, where he supervised specialized units including Undercover Narcotics, Fugitive Apprehension, Criminal Intelligence, Vice, Pharmaceutical Investigations, and various federal and local task force operations. His extensive law enforcement career included leadership assignments in patrol, tactical operations, criminal investigations, and special operations.
Following his law enforcement career, Mr. Lang became th...
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William S. Marcisz, JD, CPP, CHPA
Security & Workplace Violence Expert Witness
Strategic Security Management Consulting, Inc.
Florida
Security, Premises Liability
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Hospital & Healthcare Security, Negligent Security, Workplace Violence, Crime Foreseeability, Mall-Retail-Store Security, Hotel & Hospitality Security, Apartment Security, Parking Lots-Garage Security, Violent Crimes, Casino Security, Bars & Nightclubs, Hospital Security Expert, Healthcare Security Expert, Convenience Stores
William S. Marcisz ("Bill"), is President & Chief Consultant for Strategic Security Management Consulting, Inc., providing litigation support to both Plaintiffs and Defense clients including: Case Review & Assessment, Affidavits, Expert Testimony, Investigations and Forensic Consultation on standards of care and best practices in matters pertaining to Premises Liability, Negligent Security, Security Use of Force, and related Civil Litigation with an emphasis on Hospital/Healthcare Security and Workplace Violence. Trial testimony has aided in attaining Jury Awards up to $13.5 Million.
As a Forensic Security Consultant, Mr. Marcisz has reviewed and provided opinions in matters involving violent crime, including active shooter incidents involving claims with high liability exposure, and involving organizations, hospitals, and businesses with national and worldwide brand recognition.
Mr. Marcisz has 40 years of combined experience in private security and complex litigation. Mr. Marc...
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Thomas Shea, D.SC., CPP
Law Enforcement and Security Expert
Evidence Solutions, Inc.
Parrish, Florida
Police Practices & Procedures, Security
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Law Enforcement, Use of Force, Deadly Force, Internal Affairs, Police Training, Negligent Security, Inadequate Security, Security Consulting, Campus Security, Hospital Security, School Security, Special Event Security, Premises Liability, Hiring & Firing, Wrongful Termination, Police Promotion
Tom Shea is a nationally recognized Law Enforcement and Security expert in policing best practices, security standards, and emergency preparedness, specializing in police operations, use of force, premises liability, negligent security, and related civil litigation issues. With a distinguished career spanning law enforcement, academia, and consulting, his experience includes authoring comprehensive security plans and providing emergency response training.
Tom began his career with the Long Branch Police Department in 1998, following honorable service in the United States Marine Corps during Operation Desert Storm. During his law enforcement tenure, he served as a police commander and was a part of the Monmouth County Emergency Response Team (SWAT). After retiring in 2017, Tom transitioned to academia, founding and directing the Law Enforcement Executive Leadership Program at Seton Hall University. He also served as an instructor for LSU/NCBRT, delivering training on active shooter ...
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Donald P Redl, Jr, PCI, CFI-FTER
Use-of-Force, Firearms and Training Expert
Apex Intelligence Group LLC
Florida
Firearms & Ballistics, Security
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Justification, Lawful Use of Force, Firearms, Firearms Training, Firearms Training Accidents, Force on Force, Force on Force Training, Force on Force Training Accidents, Negligent Training, Air Soft Training, Air Soft Training Accidents, Security, Negligent Security, Concealed Carry, Deadly Force, Use of Force, Shooting, Firearms
Don Redl – Board Certified Investigator | Use-of-Force & Firearms Expert
Don Redl is a Board Certified Investigator and Experienced Firearms & Use-of-Force Expert licensed in New York, North Carolina, Florida, and Wyoming. He brings over 30 years of experience as a New York State DCJS Certified Firearms Instructor (FA), General Topics / Use-of-Force Instructor (GT), Scenario-Based Force-on-Force (Sim) and Active Shooter Response Instructor, as well as Advanced Instructor Development Training in Brain-Based Tactical Training Design (NURO).
Don holds the rating of Stock Service Pistol Master from the International Defensive Pistol Association (IDPA) and multiple instructor credentials from the National Rifle Association, including: NRA Law Enforcement Firearms Instructor, NRA Range Safety Officer, NRA Instructor in Pistol, Personal Protection, and Firearm Safety. He is also a past first-place finisher at the prestigious National Tactical Invitational.
A three-time published autho...
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Charles M Johnson, PSP, FCP
Board Certified - 30 Years Security Experience
NGA Security Advisors
Jasper, Georgia
Security, Premises Liability
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Apartment, Condo, Security Management, Video Surveillance, Cameras, Access Control, Gate Control, Security Guards, Fire Alarm, Sprinkler System, Negligent Security, Florida, Georgia, FS 768.0706, CPTED, Visitor Management, Casino, Gaming, Commercial Real Estate, Crime Prevention
Charles is a Board-Certified Physical Security Professional (PSP®) & a Florida designated Crime Prevention Through Environmental Design Practitioner (FCP) with more than 30 years of experience in the physical security industry.
In his current role as the Founder & CEO of NGA Security Advisors he provides consultation to clients in a variety of industries. He conducts onsite technology, vulnerability & CPTED (Crime Prevention Through Environmental Design) assessments and then provide detailed reports identifying current technology that exists, potential new technology improvements, areas of vulnerability and where CPTED can be applied to deter crime.
Charles can assist with Negligent Security, Premises Liability, Personal Injury cases where Security Management, Crime Prevention, Physical Access Control, Cameras, Video Surveillance, Biometrics, Artificial Intelligence, Vehicle Entrance, Pedestrian Entrance, Exterior Barriers, Fire, Burglar & Sprinkler Alarms are being called into ...
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William S. Marcisz, JD, CPP, CHPA
Security & Workplace Violence Expert Witness
Strategic Security Management Consulting, Inc.
Illinois
Security, Premises Liability
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Hospital & Healthcare Security, Negligent Security, Workplace Violence, Crime Foreseeability, Mall-Retail-Store Security, Hotel & Hospitality Security, Apartment Security, Parking Lots-Garage Security, Violent Crimes, Casino Security, Bars & Nightclubs, Hospital Security Expert, Healthcare Security Expert, Convenience Stores
William S. Marcisz ("Bill"), is President & Chief Consultant for Strategic Security Management Consulting, Inc., providing litigation support to both Plaintiffs and Defense clients including: Case Review & Assessment, Affidavits, Expert Testimony, Investigations and Forensic Consultation on standards of care and best practices in matters pertaining to Premises Liability, Negligent Security, Security Use of Force, and related Civil Litigation with an emphasis on Hospital/Healthcare Security and Workplace Violence. Trial testimony has aided in attaining Jury Awards up to $13.5 Million.
As a Forensic Security Consultant, Mr. Marcisz has reviewed and provided opinions in matters involving violent crime, including active shooter incidents involving claims with high liability exposure, and involving organizations, hospitals, and businesses with national and worldwide brand recognition.
Mr. Marcisz has 40 years of combined experience in private security and complex litigation. Mr. Marc...
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Michael Glasser, Court Qualified & Board Certified, CPP, PSP, PCI, CISSP, CSPM, CEH, CNDA
Premises Security - Physical, Electronic, Policy
Glasser Security Group LLC
New Jersey
Security, Premises Liability
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Negligent Security, CCTV, Surveillance, Lock, Access Control, Video Surveillance, Corporate Security, Alarms, Alarm, Door Hardware, Intrusion, CPTED, Burglary, Robbery, Security Guard, Security Management, Premises Liability, Premises Security, Security System, Lock Picking
Michael Glasser’s professional background includes two decades of professional experience providing security consulting, systems design and program management for major corporations, organizations and executive residences. He has provided security assessments, CPTED design, systems design, specification development, technical consultation, IT integration consultation, physical penetration test, physical security red team, expert witness, systems installation and project management services. Projects have been located in North America, South America, Europe, Middle East, Asia and additional locations around the world. Board Certified, Court Qualified,
Areas of Expertise
Physical & Electronic Security Design, Consulting, Maintenance and Operations
Physical Security Hardware and Technology
Security Doors and Hardware
Physical Security Red Team
Premises Security
Security Management
Information Security Policy and Technology
Operational Security Penetration Testing
Pro...
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Jack Leo
Security & Premises Expert - Ret. U.S. Marshal
The Probity Group
Somers Point, New Jersey
Premises Liability, Security
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Negligent Security, Premises Liability, Inadequate Security, Foreseeability, Security Adequacy, Incident Causation, Apartment Security, Hotel Security, Parking Lot Security, Retail Security, Nightclub Security, Casino Security, Law Enforcement Practices, Use of Force, CPTED, Marina, Maritime, Bar, Causation, Restaurant
Jack Leo is the Founder and Principal Consultant of The Probity Group, a security consulting and investigative firm specializing in premises liability, negligent security, law enforcement practices, security operations, and protective methodologies. He is a former senior federal law enforcement executive and security professional with nearly three decades of progressively responsible leadership in high-risk investigative, protective, and security environments.
A veteran of both the U.S. Navy and U.S. Air Force, Mr. Leo began his federal career as a United States Border Patrol Agent before serving in the United States Marshals Service, ultimately attaining the position of Chief Deputy U.S. Marshal — the highest field-based leadership position within the agency. Over the course of his career, he directed and supervised complex investigations, fugitive apprehensions, witness protection operations, security assessments, and protective assignments across the United States and internatio...
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Donald P Redl, Jr, PCI, CFI-FTER
Use-of-Force, Firearms and Training Expert
Apex Intelligence Group LLC
Salt Point, New York
Firearms & Ballistics, Security
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Justification, Lawful Use of Force, Firearms, Firearms Training, Firearms Training Accidents, Force on Force, Force on Force Training, Force on Force Training Accidents, Negligent Training, Air Soft Training, Air Soft Training Accidents, Security, Negligent Security, Concealed Carry, Deadly Force, Use of Force, Shooting, Firearms
Don Redl – Board Certified Investigator | Use-of-Force & Firearms Expert
Don Redl is a Board Certified Investigator and Experienced Firearms & Use-of-Force Expert licensed in New York, North Carolina, Florida, and Wyoming. He brings over 30 years of experience as a New York State DCJS Certified Firearms Instructor (FA), General Topics / Use-of-Force Instructor (GT), Scenario-Based Force-on-Force (Sim) and Active Shooter Response Instructor, as well as Advanced Instructor Development Training in Brain-Based Tactical Training Design (NURO).
Don holds the rating of Stock Service Pistol Master from the International Defensive Pistol Association (IDPA) and multiple instructor credentials from the National Rifle Association, including: NRA Law Enforcement Firearms Instructor, NRA Range Safety Officer, NRA Instructor in Pistol, Personal Protection, and Firearm Safety. He is also a past first-place finisher at the prestigious National Tactical Invitational.
A three-time published autho...
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Marcello R. Kettrles, CPP, PSP, CPD, CCE
Adult Corrections / Negligent Security Litigation
Preventive Security Assessment Services, LLC
New York, New York
Jails & Prisons, Security
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Correction Officer, Expert Witness, (CPP®), Crime Prevention Through Environmental Design, Rikers Island East Elmhurst NY, Security Management, Conditions of Confinement, Physical Security, Jail & Prison Practices, Negligent Security, New York City, Certified Correction Executive (CCE), (PSP), (CPD), (CCE)
I am the Founder and Principal of Preventive Security Assessment Services, LLC in New York City. I founded the Preventive Security firm following a distinguished career in law enforcement and security operations spanning more than 35 years. I operate as an Independent Physical Security Consultant providing Litigation Support.
Since retiring from the New York City Department of Corrections (NYCDOC) with Peace officer status in 2011, I've continued working in the field of security, while maintaining correction relevance. I bring a rare and specialized perspective to litigation support involving Adult Corrections and Negligent Security. As a retired NYCDOC officer, I have transitioned into a career as an Expert Witness–an uncommon path in this field. "One of the Few and Perhaps the Sole-former Rikers Island Correction officer providing Litigation Support across the United States."
I am dual Board-Certified as a Certified Protection Professional (CPP®) and Physical Security Profes...
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Michael Glasser, Court Qualified & Board Certified, CPP, PSP, PCI, CISSP, CSPM, CEH, CNDA
Premises Security - Physical, Electronic, Policy
Glasser Security Group LLC
Brooklyn, New York
Security, Premises Liability
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Negligent Security, CCTV, Surveillance, Lock, Access Control, Video Surveillance, Corporate Security, Alarms, Alarm, Door Hardware, Intrusion, CPTED, Burglary, Robbery, Security Guard, Security Management, Premises Liability, Premises Security, Security System, Lock Picking
Michael Glasser’s professional background includes two decades of professional experience providing security consulting, systems design and program management for major corporations, organizations and executive residences. He has provided security assessments, CPTED design, systems design, specification development, technical consultation, IT integration consultation, physical penetration test, physical security red team, expert witness, systems installation and project management services. Projects have been located in North America, South America, Europe, Middle East, Asia and additional locations around the world. Board Certified, Court Qualified,
Areas of Expertise
Physical & Electronic Security Design, Consulting, Maintenance and Operations
Physical Security Hardware and Technology
Security Doors and Hardware
Physical Security Red Team
Premises Security
Security Management
Information Security Policy and Technology
Operational Security Penetration Testing
Pro...
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Ken Wheatley, MA, CPP
Premises Liability / Negligent Security
Royal Security Group LLC
Fairview, North Carolina
Premises Liability, Security
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Negligent Security, Guard Force Management & Performance, Security Procedures, Event Security, Hotels, Retail, Apartment Buildings, Commercial Buildings, Malls, Homicide, Assaults, Battery, Rape, Negligent Supervision, Negligent Training, Negligent Retention, Bars
Mr. Wheatley is the founder of Royal Security Group LLC, an independent security and business management consulting practice. He also provides expert opinions and testifies in plaintiff and defense cases involving premises liability and negligent security in a variety of settings.
Senior Vice President and Chief Security Officer (retired) for Sony Electronics' global operations and Sony Online Entertainment's domestic operations.
Former FBI Special Agent with experience leading investigations in a variety of areas, including white collar crime, drugs, kidnapping, bank robbery, espionage, and violent criminal apprehension.
Current member of the Senior Advisory Group with the FBI's Domestic Security Alliance Council and advisor to the FBI's Threat and Resilience Sharing Committee.
Former member of the Board of Directors for the FBI-affiliated InfraGard San Diego/Imperial Counties chapter. Sector Chief Co-Coordinator.
Served on the Citizens' Review Board on Police Practices for th...
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Joseph Hendry, PSP, CLEE
K-12 Security Subject Matter Expert and Consultant
COSECURE Enterprise Risk Solutions
Stow, Ohio
School Safety, Education & Schools
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school security, special needs security planning, active shooter drills, security assessment, duty of care, active shooter, emergency planning, university security, risk assessment, school shooting, lockdown, behavioral threats, workplace violence, school violence, insurance expert witness, physical security, negligent security
Professional Qualifications
-K–12 school security and safety systems
-Active threat and hostile event preparedness
-Security risk assessment and mitigation
-Civilian and law‑enforcement response coordination
-School emergency planning, policy, and procedures
-Duty of care, foreseeability, and reasonableness of preventive measures
-Standards‑based practices for age‑appropriate and accessible safety planning
Professional Qualifications
-Principal Consultant for K–12 Education, COSECURE, a division of Cozen O’Connor, providing school security consulting services across North America and Europe.
-Selected in 2024 to provide subject matter expertise to the U.S. Department of Homeland Security Cybersecurity and Infrastructure Security Agency (DHS CISA) School Safety Task Force
-Recognized by the Ohio Department of Homeland Security and the Ohio Attorney General’s Office as a subject matter expert in active threat response.
-Board Certified Physical Security Professional (PSP) through A...
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Daniel Brown
Law Enforcement Expert - Former Police Chief
Evidence Solutions, Inc.
Burns, Oregon
Police Practices & Procedures, Law Enf & Criminal Justice
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Police Use of Force, Police Failure to Protect, Community Policing, Negligent Security, Inadequate Security, Evidence Preservation, Law Enforcement, Deadly/Excessive Force, Evidence Handling, Officer Involved Shootings, Law Enforcement Risk Management
Daniel Brown is a Law Enforcement expert with close to 28 years of combined policing and military service. He is a seasoned professional specializing in Police Policy and Procedure, Excessive/Deadly Force, Negligent/Inadequate Security, Evidence Analysis, Handling & Preservation, Failure to Protect, Community Policing, and more. His experience in law enforcement ranges from municipal, county, tribal, and military branches.
With a proven track record in leadership, Dan has helped establish a municipal police department from inception and used this knowledge to rebuild two different fledgling police departments as a police chief. He is a decorated military veteran of two branches of service and a graduate of the 267th Session of the FBI National Academy.
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William V Durso Jr, CPP, MBA
29 Years - Security & Premises Liability Expert
The Durso Group, LLC
Allentown, Pennsylvania
Security, Premises Liability
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negligent security, inadequate security, inadequate security operations, bars, hotels, apartment complex, building security, security officer, security management, casino, nightclub, security consulting, security advisor, retail security, event security, security technology, video surveillance
William V. Durso, Jr., CPP, is the Founder and Principal Advisor of The Durso Group, LLC (TDG). Bill provides litigation support for cases involving inadequate security, negligent security, security management operations and premises liability.
Bill has over 29 years as security director, security consultant, technology guide and Security Master Plan Subject Matter Expert. Prior to his consulting career, Bill was a Security Director holding all positions and building a few departments from the ground-up. Bill has a unique background that encompasses security operations, security technology, security processes and procedures and facilities management. He has worked closely with Human Resources, IT, Legal, Boards of Director in assuring that his security programs meet or exceed expectations.
Bill now uses the knowledge gained over those years as a Principal Security Advisor for companies that do not have the in-house expertise to assess, plan, develop and implement security master ...
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Kevin R. Madison, JD, CPP, PCI, EMT, FF
POLICE & SECURITY EXPERT-FORMER POLICE CHIEF
Kevin R. Madison, Expert Witness & Consultant, LLC
Lago Vista, Texas
Security, Police Practices & Procedures
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Inadequate Security, Negligent Security, Police Pursuits, Police Chases, Police Crashes, Excessive Force, Use of Force, Assaults, Sexual Assaults, Assaults at Hotels, Parking Garage Safety, Parking Lot Safety, Auto-Pedestrian Safety, Workplace Violence, Foreseeability Domestic Violence, Bouncers, Apartment Security, Retail Security
Kevin R. Madison is UNIQUELY QUALIFIED TO TESTIFY AND/OR CONSULT IN THE FOLLOWING ARENAS:
GENERAL POLICE PROCEDURES
POLICE USE OF FORCE
POLICE PURSUITS
EMERGENCY VEHICLE RESPONSE PROTOCOLS - POLICE, FIRE, EMS RESPONDERS
POLICE, FIRE, EMS VEHICLE CRASHES
GENERAL SECURITY ISSUES
NEGLIGENT SECURITY
EXCESSIVE FORCE BY SECURITY OFFICERS AND BOUNCERS
AUTO-PEDESTRIAN SAFETY ISSUES
PARKING LOT AND PARKING GARAGE PEDESTRIAN INJURY CASES
FORESEEABILITY OF DOMESTIC VIOLENCE
WORKPLACE VIOLENCE
ASSAULTS AND INJURIES WHEN REPOSSESSING VEHICLES
Former Assistant District Attorney of Travis County, Texas.
Advanced Peace Officer Certification from TCOLE with law enforcement experience as a Police Chief, Investigator, Police Officer, Campus Police Officer, and Deputy Sheriff.
Certified Police Instructor by Texas Commission on Law Enforcement (TCOLE)
Approximately ten years Security experience, including Security Supervisor of Dobie Center - a premier 27 story college co-ed private dormitory ...
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William S. Marcisz, JD, CPP, CHPA
Security & Workplace Violence Expert Witness
Strategic Security Management Consulting, Inc.
Texas
Security, Premises Liability
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Hospital & Healthcare Security, Negligent Security, Workplace Violence, Crime Foreseeability, Mall-Retail-Store Security, Hotel & Hospitality Security, Apartment Security, Parking Lots-Garage Security, Violent Crimes, Casino Security, Bars & Nightclubs, Hospital Security Expert, Healthcare Security Expert, Convenience Stores
William S. Marcisz ("Bill"), is President & Chief Consultant for Strategic Security Management Consulting, Inc., providing litigation support to both Plaintiffs and Defense clients including: Case Review & Assessment, Affidavits, Expert Testimony, Investigations and Forensic Consultation on standards of care and best practices in matters pertaining to Premises Liability, Negligent Security, Security Use of Force, and related Civil Litigation with an emphasis on Hospital/Healthcare Security and Workplace Violence. Trial testimony has aided in attaining Jury Awards up to $13.5 Million.
As a Forensic Security Consultant, Mr. Marcisz has reviewed and provided opinions in matters involving violent crime, including active shooter incidents involving claims with high liability exposure, and involving organizations, hospitals, and businesses with national and worldwide brand recognition.
Mr. Marcisz has 40 years of combined experience in private security and complex litigation. Mr. Marc...
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Bruce D. Alpe, MSM, CPP
Premises Liability - Ret. FBI Agent, CSO, CPP, MSM
The Alpe Group
Houston , Texas
Premises Liability, Security
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Negligent Security, Inadequate Security, Bar Security, Crime Foreseeability, Premises Liability, Venue Security, CPTED Evaluation, Crowd Management, Apartment Security, Parking Lot Security, Church Security, Nightclub Security, Houses of Worship Security, Banking Security, Wrongful Death, Security Management, ActiveShooterResponse
Awarded the Federal Bureau of Investigation (FBI) Medal of Excellence for designing and executing security strategies that mitigated organizational risk, strengthened physical security standards and compliance. More than 30 years of security/risk management experience as a 25-year FBI Special Agent, Crisis Management Coordinator, Chief Security Officer (CSO), Supervisory Special Agent, and Chief of the FBI's National CSO Program, corporate security executive, and Senior Director of Security for one of the largest houses of worship in the United States.
Real-world, operationally proven command experience leading tactical operations and responses to active shooter, explosive threats, and terror related incidents. Developed security plans to protect assets at more than 1,000 banks, at Major Special Events (Super Bowl, Final Four, MLB All Star game, College Football Playoff National Championship game) and spectators, including thousands weekly at a church with a 16,500 seat capacity. ...
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Michael S. D'Angelo, CPP, CSC, CHPA
Secure Direction Consulting, LLC
Richmond, Virginia
Security, Premises Liability
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Premises Liability, Negligent Security, Violent Crimes, Workplace Violence, Healthcare Security, Guard Services, Risk Assessment, Hospital Security, Incident Reporting, Security Training, Security Systems Design, Active Shooter
Highly credentialed, Board Certified Expert.
Michael S. D'Angelo, is the Principal & Lead Consultant for Secure Direction Consulting, LLC. He provides case review, expert testimony and consultation on security standards and best practices in cases involving premises liability, negligent security, and related civil litigation, with a special focus on healthcare security and workplace violence.
D'Angelo has been in the public safety and private security industries for nearly 30 years. He retired as a Police Captain with the South Miami Police Department, having served 23 years In a variety of positions; including supervision and senior management. Upon transitioning to the private sector, he was hired as the corporate security leader for Baptist Health South Florida, where he served as an internal consultant for security and emergency preparedness to six hospitals and a multitude of outpatient facilities. He now provides risk assessments, security plans, guard force planning and...
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Michael Glasser, Court Qualified & Board Certified, CPP, PSP, PCI, CISSP, CSPM, CEH, CNDA
Premises Security - Physical, Electronic, Policy
Glasser Security Group LLC
West Virginia
Security, Premises Liability
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Negligent Security, CCTV, Surveillance, Lock, Access Control, Video Surveillance, Corporate Security, Alarms, Alarm, Door Hardware, Intrusion, CPTED, Burglary, Robbery, Security Guard, Security Management, Premises Liability, Premises Security, Security System, Lock Picking
Michael Glasser’s professional background includes two decades of professional experience providing security consulting, systems design and program management for major corporations, organizations and executive residences. He has provided security assessments, CPTED design, systems design, specification development, technical consultation, IT integration consultation, physical penetration test, physical security red team, expert witness, systems installation and project management services. Projects have been located in North America, South America, Europe, Middle East, Asia and additional locations around the world. Board Certified, Court Qualified,
Areas of Expertise
Physical & Electronic Security Design, Consulting, Maintenance and Operations
Physical Security Hardware and Technology
Security Doors and Hardware
Physical Security Red Team
Premises Security
Security Management
Information Security Policy and Technology
Operational Security Penetration Testing
Pro...
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Drew Neckar, MBA, CPP, CHPA
Security executive and consultant
COSECURE Enterprise Risk Solutions
Strum, Wisconsin
Security, Premises Liability
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Healthcare/Hospital Security, Bar/Nightclub Security, Parking Lot Security, Campus Safety, School Security, Negligent Security, CPTED, Crime Prevention, Crime Foreseeability, Use of Force, Security Officers/Guards, Workplace Violence, Security Assessment, Risk Assessment, Security Training/Education
Drew Neckar is a board-certified security management professional who over his 20+ year career has managed safety and security programs for companies operating in the healthcare, higher education, financial services, and nightclub industries.
In 2014 Drew founded Security Advisors Consulting Group, a full-service security consulting firm that has provided strategic advice on improvement of security and violence prevention programs to companies throughout the United States and internationally.
Drew and security programs he has managed have been recognized with awards including:
Mayo Clinic Health Systems' Security Department was awarded the “Program of Distinction” award from the International Association of Healthcare Security and Safety (IAHSS) while under Drew's leadership.
Mayo Clinic Health Systems' Security Department was named to Security Magazine’s “Security 500” as one of the top Security programs while under Drew's leadership.
Named Global Security Consultant of the Ye...