Security Guards Expert Witnesses

Arizona

Security, Premises Liability - hospital security, workplace violence, bar security, nightclub security, concert security, venue security, alarm systems, alarm monitoring, security guards, special event security, school security, fire alarm systems, burglar alarm systems, security systems, hold up alarms, apartment security

Board certified security expert with more than forty-six years of experience.

Palm Springs, California

Security, Premises Liability - hospital security, workplace violence, bar security, nightclub security, concert security, venue security, alarm systems, alarm monitoring, security guards, special event security, school security, fire alarm systems, burglar alarm systems, security systems, hold up alarms, apartment security

Board certified security expert with more than forty-six years of experience.

Sarasota, Florida

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

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 ...

Mableton, Georgia

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...

Buford, Georgia

Premises Liability, Security - Premises Liability, Violent Crime, Security Negligence, Security Guards, Gas Stations, Convenience Stores, Apartment Complexes, Retail Establishments, Night Clubs, Parking Lots, Forseeability

Mark is a Senior Consultant with Group Nine Risk Consulting, specializing in security risk management, expert witness testimony, forensic consulting, and security training. He joined the firm following a distinguished 25-year federal law enforcement career, earning recognition for his contributions to national security and investigative leadership. As a Special Agent with the Federal Bureau of Investigation (FBI), Mark led high-profile investigations into financial crimes, public corruption, organized crime, and counterterrorism. His exceptional work earned him the FBI Director’s Award twice, a testament to his investigative expertise and leadership. Before joining the FBI, Mark served as a Special Agent with the U.S. Air Force Office of Special Investigations (AFOSI), where he conducted investigations into violent crime, narcotics trafficking, and counterintelligence. He also spearheaded Red Team Operations to identify and address facility and operational security vulnerabilities....

Peachtree City, Georgia

Security, Premises Liability - Security, Premises Liability, Threat Assessment, Active-Shooter, Inadequate & Negligent Security, Workplace Violence, Security Management, Security Guards, Gas Station, Apartment, Parking Garage, ASIS, Physical Security, Asset Protection, Logistics Security, Investigations, WPV, SHRM, assault

Josh is a senior consultant at Group Nine Risk Consulting and a seasoned professional with over 20 years of career experience in corporate security and law enforcement. Josh is board certified in Security Management, having earned the Certified Protection Professional (CPP) certification through ASIS International. Globally recognized as the standard of excellence for security management professionals, the CPP demonstrates one’s knowledge and competency in seven key domains of security: Security Principles and Practices, Business Principles and Practices, Investigations, Personnel Security, Physical Security, Information Security, and Crisis Management. Josh is also a Certified Threat Manager (CTM) by The Association of Threat Assessment Professionals (ATAP). ATAP is a distinguished and dynamic organization that serves as a pivotal hub for professionals dedicated to the comprehensive field of threat assessment and risk management. Comprising a diverse community of experts from var...

Nevada

Security, Premises Liability - hospital security, workplace violence, bar security, nightclub security, concert security, venue security, alarm systems, alarm monitoring, security guards, special event security, school security, fire alarm systems, burglar alarm systems, security systems, hold up alarms, apartment security

Board certified security expert with more than forty-six years of experience.

Zephyr Cove, Nevada

Gaming & Gambling, Dram Shop & Alcohol Services - Gaming, casinos, surveillance, nightclubs, bars, retail, parking, dram shop, security guard, multi unit housing

Independant Security Consultant specializing primarily in gaming security and surveillance along with security premises liability. Board certified in security and surveillance, instructor in Gaming Management Program at University of Nevada at Reno and at the International Gaming Institute at UNLV. An experienced based expert with over 40 years of practical experience, Certified Protection Professional from ASIS International, Certifed Surveillance Professional with International Association of Certified Surveillance Professionals. International Crime Prevention Specialist.

Cleveland, Ohio

School Safety, Education & Schools - school security, school safety, school shootings, school wrongful death, school assaults, school sexual assaults, school rapes, school violence, school bullying, school crisis, school emergency, school police, security guards, security officers, student supervision, school bus, school gangs, crime

Ken provides experienced, accessible, timely and quality expert services to plaintiff and defense attorneys on preK-12 school safety and security cases. He is an experienced speaker, teacher, news commentator and personal communicator on school safety. Ken served as an officer, investigator and gang unit supervisor for the Cleveland City Schools' safety division, and as a suburban school security director and assistant gang task force director. During his 30 years in school safety he trained and consulted with school and public safety officials from 50 states and internationally.   Ken is the author, co-author and/or editor of three books, five book chapters and 450 articles on school safety. He appears regularly in national and international news.   Ken is a four-time invited Congressional witness on school safety and emergency preparedness, and testified on bullying to the U.S. Commission on Civil Rights. He presented to the Sandy Hook Advisory Commission, Education Commission o...

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

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 ...