Security Management Expert Witnesses

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 ...

Security, Law Enf & Criminal Justice - Security, Premises Liability, Police Procedures, Active-Shooter Response, Use of Force, Officer Involved Shootings, SWAT, Tactical Operations, Firearms, In-Custody Death, Arrest Procedures, Inadequate & Negligent Security, Workplace Violence, Security Management, Security Guards

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...

Security, Premises Liability - Negligent/Inadequate Security, Workplace Violence, Security Management Consulting, Negligent Hiring and Retention and Training, Use of Force

Norman D. Bates, Esq., President and founder of Liability Consultants, Inc., is a nationally-recognized expert in security and the law. For over thirty years, he has been providing security management consulting services to private industry as well as court-certified expert witness services nationwide to both plaintiff and defense firms in civil cases regarding inadequate security, negligent hiring or training, and workplace violence. Mr. Bates regularly presents seminars on civil liability issues and has authored numerous articles and books on the subject. Mr. Bates recently co-authored a publication on “The Prevention of Child Sexual Abuse in Youth-Serving Organizations” published by the national Center for Victims of Crime and the National Crime Prevention Council. BIOGRAPHY OF NORMAN D. BATES, ESQ. Formerly, Mr. Bates was an Assistant Professor of Criminal Justice at Northeastern University in Boston and Director of Security and Legal Counsel to the Saunders Hotel Corporation....

Security, School Safety - Terrorism, School Security/Safety, Religious Facilities Security/Safety, Active Shooter Prep, Parking Lots/Garages, Entertainment Venues, Sports Arenas, Transportation Security, Hotel Security, Security Management, Inadequate/Negligent Security, Special Event Security, Workplace Violence

Joseph Tadrick, MBA, MS, is a premises liability and security consultant. Joseph provides consultation 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, entertainment venues, and sport arenas. He holds an MBA in Management/Marketing, an MS in Protection Management, and a BA in Psychology. In addition, Joseph was board certified in security management, having earned the prestigious designation of Certified Protection Professional (CPP) (expired 12/19) from ASIS International. As a vetted member of and speaker at InfraGard events, Joseph contributed to and developed a partnership between the FBI and the private sector by providing industry specific insights. Joseph’s training in physical security, force protection, and Intelligence began when he as a Naval Reserve Intelligence Officer supported th...

Jails & Prisons, Security - Correction Officer Policies & Procedures, Premises Liability, Use of Force, Crime Prevention Through Environmental Design, Standards of Care, Security, Security Management, Conditions of Confinement, Physical Security, Security Guard Negligence, Jail & Prison Practices, Negligent Security

Marcello is the founder of Preventive Security Assessment Services, LLC in New York City; a firm specializing in consulting, physical security and security training. He founded Preventive Security Assessment Services in 2021 following a long and successful law enforcement and security operations career that spanned over 30 years. Marcello was employed by the New York City Department of Corrections (NYCDOC) for over 20 years, retiring in good standing as a frontline Corrections Officer on Rikers Island in July 2011. During his tenure, he was responsible for managing risk in jail settings. His responsibilities included, preventing and managing hazards with conditions of confinement, search and seizure protocols, inmate classification / threat assessments, inmate safety, suicide prevention, exterior perimeters, video surveillance, access control, gathering and sharing intel, report writing, security assessments of physical jails and jail connected facilities. His work with the NYCDO...

Security, Premises Liability - 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 25+ 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 ...

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 ...

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)...

Cybersecurity, Computers - Computer Forensics, Computer Investigations, Computer Security, Cyber Breach, Intellectual Property, Loss Prevention, Network Security, Security Management, Security Negligence, Trade Secrets, Security Standards, Data Privacy, Cloud Security, Patents, Apportionment, Infringement, Damages, Meta Data

Dr. Eric Cole is a computer and cybersecurity expert who has built a solid reputation in the information technology industry over the last three decades. His educational experience includes a master’s degree in computer science from the New York Institute of Technology, and a doctorate in Professional Studies from Pace University. Dr. Cole’s expert involvement in the cybersecurity industry is demonstrated by being appointed as the commissioner on cybersecurity for the 44th president, holding a position as a senior fellow at SANS, and being elected to the Purdue University Executive Advisory Board. His extensive real-world experience includes being the former Chief Technology Officer for McAfee, former Chief Scientist at Lockheed Martin, and former Program Manager at the Central Intelligence Agency. Currently, he is the CEO and Founder of Secure Anchor Consulting. His consulting clients include Fortune 500 companies, Fortune 50 companies, international organizations, and the feder...