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Specialties & Experience of this Expert Witness

General Specialties:

Security and Premises Liability

Keywords/Search Terms:

Premises liability, workplace violence, armed assailant "active shooter", training, operations, alarm, surveillance, access control, intrusion detection, locking, crime prevention through environmental design (CPTED), lighting, apartments, hospitality, parking, commercial, retail and many others.


Masters Organizational Security Management, Webster University; Bachelors, Criminal Justice, Western Illinois University

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

Mr. Sean A. Ahrens is a well-known security/resilience leader who has been providing security consulting for over 22+ years. He has been instrumental in the assessment/analysis, design, implementation of security programs for a wide array of commercial, hospitality businesses and a myriad of other entities. He is well versed in best practices and has documented thousands of vulnerabilities to organizational assets. He has deposition and case experience, and leverages visualizations and data to make powerful impressions regarding foreseeability. He holds a number of certifications. He is a former Crisis Prevention Instructor, Board Certified in security management as a Certified Protection Professional (CPP), a Board Member with the International Association of Professional Security Consultants and holds their Certified Security Consultant (CSC) designation. He is also a Fellow with the Security Institute and former Building Certified Security Professional. **He has conducted hundreds of assessments, analysis and penetration tests. He is knowledgeable in a myriad of operational, architectural and technological vulnerabilities, which allow foreseeable incidents to occur. **An accomplished author and lecturer, he is a former founding member of the Commission on Guidelines and standards and has contributed to a number of security guides and standards, inclusive of those that address workplace violence, security officer training and selection, business continuity, facility security controls and risk assessment. His work continues as the Chair of the Council on Tall Buildings and Urban Habitat's committee where he coauthored a security guideline to assist developers and owners in the analysis and selection of security controls for their respective high-rise properties. He has 55+ testimonials on his linked in page, which articulate the positive participation in his Clients projects. **Initial case evaluations/discussions are welcomed and do not incur charges.