Security Standards Used to Evaluate Premises Liability Cases
- Mark Lang

- Apr 2
- 2 min read
In premises liability litigation involving criminal acts, courts often rely on expert testimony to determine whether a property owner's security measures were reasonable. Security experts evaluate whether security programs align with accepted industry standards and professional practices. These standards provide a framework for evaluating how organizations identify and mitigate crime risks.
Security Risk Assessments
A fundamental component of professional security management is the security risk assessment. Risk assessments identify vulnerabilities within a property and evaluate potential threats.
These assessments often examine environmental design, lighting levels, surveillance coverage, access control systems, security staffing, and operational procedures.
Property owners who fail to conduct periodic risk assessments may overlook security vulnerabilities that increase the likelihood of criminal activity.
Crime Prevention Through Environmental Design
Crime Prevention Through Environmental Design (CPTED) is a widely recognized approach for reducing criminal opportunity through environmental design.CPTED principles address factors such as visibility, lighting, territorial reinforcement, access control, and maintenance. Properties that fail to incorporate these principles may create conditions that enable criminal activity.
Security Policies and Training
Effective security programs require clear policies and training. Security personnel must understand patrol procedures, incident reporting protocols, emergency response procedures, and communication practices.
When security personnel are inadequately trained or poorly supervised, the effectiveness of the security program may be significantly reduced.
Evaluating Reasonable Security Practices
Security experts examine whether the measures implemented by property owners were reasonable given the risk environment. This evaluation may include reviewing security contracts, staffing models, patrol practices, incident reports, and management oversight.
These evaluations help courts determine whether a property owner exercised reasonable care in addressing security risks.
About the Author
Mark Lang is a security expert witness with more than four decades of experience in law enforcement, healthcare security administration, and corporate security management. He has consulted on numerous negligent-security premises-liability and police misconduct matters.
Expert Witness Inquiries: Attorneys seeking consultation on negligent security, premises liability, or police misconduct cases may contact Mark Lang via the website's contact page. CVs and fee schedules are attached to the website for review.
