Security Expert Witnesses in Texas

Security, Premises Liability - 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 ...

Security, Premises Liability - 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. Finalist for Campus Safety Magazine’s “Cam...

Premises Liability, Security - 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...

Texas

Security, Premises Liability - 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 ...

Stafford, Texas

Engineering, Security - Information Technology, Low Voltage Systems, HVAC, HVAC Controls, Building Automation Systems, Fire Alarm Systems, Risk Assessments, Audio-Visual Systems, Commissioning, SCADA, Video Surveillance Systems, Access Control Systems, CATV, Integrated Systems, Smart Building Technologies, Cabling Systems

John is a registered professional engineer in AZ, CA, CO, DC, FL, GA, IL, KY, LA, MA, MD, MI, MN, MO, NC, NV, NY, OH, PA, TX, VA, WA and WI. He is a Certified Protection Professional (CPP) by ASIS International, a Building Commissioning Professional (BCxP) by the American Society of Heating, Refrigerating and Air-Conditioning Engineers, a Leadership in Energy and Environmental Design (LEED) Accredited Professional by the US Green Building Council, a WiredScore Accredited Professional, and a SmartScore Accredited Professional by WiredScore. John has been involved in the design of highly integrated and smart technology systems for buildings for several decades. He has overseen the implementation of hundreds of high profile and iconic facilities across the world. His design expertise includes; information technology, structured cablings systems, wired and wireless data communication systems, audio and visual display and communications systems, physical security assessments and pl...

Texas

Security, Premises Liability - Hospital & Healthcare Security, Negligent Security, Workplace Violence, Crime Foreseeability, Mall-Retail-Store Security, Hotel & Hospitality Security, Apartment Buildings & Office Security, Parking Lots-Garage Security, Violent Crimes, Casino Security, Bars & Nightclubs and School Security

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...

Mason, Texas

Security, Premises Liability - Inadequate/Negligent Security, Security Officers, Security Policy & Procedures, Security Management, Parking Garages, Parking Lots, Courthouse/Jail Security, Warehouse, Apartment, Security Training, Bars/Nightclub Security, Workplace Violence, Corporate Security

Billy K. Johnson, PSP is the owner and Principal Consultant of J-2 Security Services, LLC. Billy is a security consultant and testifying expert that specializes in negligent security and premises liability cases. He consults regarding the security and safety aspects of both commercial, governmental, and residential properties. He has performed security assessments for facilities and properties such as courthouses (Federal and State), jails, data centers, logistics warehouses, nightclubs, corporate office buildings, banking institutions, college campuses, apartment complexes, parking garages and surface parking lots, and medical/surgical centers. He performs case review, preparation of expert opinion reports, and testimony to assist in litigation. He is board-certified in physical security, having earned the designation of Physical Security Professional from ASIS International. He is certified as an instructor and practitioner in Crime Prevention Through Environmental Design (CPTED)...

Houston , Texas

Premises Liability, Security - Risk management, Threat Assessments, Security Assessments, Executive Protection, Physical Security, Large Venue Security, Special Event Security Design, Special Event Security Management, Premise Liability, Security Layering, Access Control, luxury Residence Security, Evolv Weapons Detection System, Active Shooter

Bruce David Alpe, MSM, CPP Security & Risk Management Expert | Premises Liability & Litigation Support Overview Security executive with 20+ years of accomplishments in security and crisis management leadership. Awarded the FBI Medal of Excellence for risk mitigation strategies, performance across physical security standards, and transforming the organization. Recognized with the FBI Director’s High-Impact Leadership Award. Master of Security Management (University of Houston) and Certified Protection Professional (CPP). Recognized expert in premises liability, risk mitigation, and security program design. Retained as a security expert in five legal cases—all successfully resolved. Professional presenter on Active Shooter response, physical security, and large venue/special event security assessments and management. The Alpe Group | February 2026 - Present Founder Design and implement tailored security solutions protecting what matters most to clients staying ahead of evolving t...

McKinney, Texas

Security, Premises Liability - Inadequate/Negligent Security, Hotel/Motel, Safety/Security, Security Procedures, commercial buildings, Crime Foreseeability, Assaults, Battery, Rape, Robbery, Murder, Parking Lot, Apartments, Violent Crime, Workplace Violence, Wrongful Death, OSHA, emergency/crisis, premises security liability

Vince Vittatoe, CPP, CSC, CPTED, is the Principal/CEO at Vittatoe Consulting, LLC, independent security management and forensic consulting practice focused on providing clients security and loss prevention expertise to help protect their employees and customers. With over 30 years of combined law enforcement and corporate safety, security, and loss prevention experience, we offer our clients direction and advice from our experience in both the public and private sectors. After college, Vince worked for State Farm Insurance as an accounting supervisor before joining the Dallas Police Department in 1988, serving as a police officer and divisional defensive tactics instructor. Upon returning to the private sector, Vince entered the hospitality industry and gained operations experience as an Area Manager for Motel 6, responsible for twelve motels. Next, Vince moved to the corporate office of Accor North America as the Director-Safety & Security. Vince held safety, security, and los...

Texas

Property Management, Premises Liability - HOA Management, Community Association Management, Homeowners Association, Property Management, Luxury high rise, Condo Association, premise liability, maintenance, security, Fiduciary Duty, personal injury, Community Manager, HOA, Highrise, slip and fall, Condominium, apartments, wrongful death, H.O.A., property

Professional Property Management can be a complex industry to navigate. HOA's, Apartment buildings, and other types of Community Associations ( common interest communities and multi-family properties), such as highrise condominiums encounter legal challenges often. Whether it is a slip and fall, criminal act, operational mistakes, procedural problems, violation of fiduciary duty, and or any probelm, I may be able to help your firm delve deep into the details that may help your case. If involved early enough in your case, I may be able to assist in your strategy for upcoming depositions. With nearly two decades in Florida's community association management industry, I have attained the necessary experience to assist my clients through just about any situation. I have handled a broad spectrum of construction projects for luxury properties in Miami and the Tampa Bay area. Those have given me an edge in this ever-changing field. Helping legal firms, insurance carriers, frustrated home...

Texas

Fire, Engineering - Fire Protection Engineering, Security, Building Code, Arson, Smoke Detection, Fire Alarm, Sprinkler, Fire Suppression, Fire Detection, Smoke and CO Alarm, Forensic, Fire Spread, Fire Recreation, Origin and Cause, Consumer Products, Failure Analysis, Fire Modeling, Explosion, Safety, Construction Defects

Licensed Professional Engineer (PE) of Fire Protection Engineering plus specialized expertise in Building Construction Codes and ASIS Board Certified in Physical Security (PSP & CPP). Executive leader in the Architecture/Engineering/Construction (A/E/C) industry - Expert in building codes, setting risk-reduction strategies, balancing safety with security, and managing complex practices/programs including "surgical" engineering problem-solving for complex multi-disciplinary project issues. || Creator & Host of the "FIRE PROTECTION ENGINEERING PODCAST" || I've developed numerous firms from my own startups to large firm expansion initiatives and personally specialize in risk-based engineering (i.e., Resilience) and consulting for diverse clients in a broad range of A/E/C industry markets. Including extensive experience within Government, Transit & Tunnels, Multinational Corporate/Commercial, Education, Data Centers, State & Local Government, Mission Critical & SCIF, Aviation, Hist...

Lago Vista, Texas

Security, Police Practices & Procedures - 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 of Domestic Violence

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 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 housing 950 University of Texas students, with a t...