APS provides security expert witness services and support to law firms in the form of Security Expert Opinion Consulting, Security Evaluations, Security Requirement Analysis, Feasibility Studies, Security Audits, Security Risk and Vulnerability Assessments and Expert Witness Testimony in litigation matters relating to premise liability, inadequate security and negligent security for both plaintiff and defense attorneys. APS security expert services also include electronic security system evaluations, such as CCTV systems and alarm systems, as well as evaluations of physical security measures, such as locking devices, fencing, lighting, security staffing, and lease-end due diligent studies of commercial facilities.