--- title: "Billy K. Johnson, PSP" description: "Billy K. Johnson, PSP is a physical security, CPTED and premises liability consultant in Mason, TX, and a retired Supervisory Deputy U.S. Marshal." canonical: "https://findasecurityconsultant.com/consultants/billy-k-johnson-psp/" last_updated: "2026-11-11T13:29:18+00:00" --- # Billy K. Johnson, PSP > Billy K. Johnson, PSP is a physical security, CPTED and premises liability consultant in Mason, TX, and a retired Supervisory Deputy U.S. Marshal. ![Jackson Chambers, MA](https://findasecurityconsultant.com/wp-content/uploads/2026/11/jackson-chambers-headshot-300x300.webp) ### [Jackson Chambers, MA](https://findasecurityconsultant.com/consultants/jackson-chambers-ma/) Jackson Chambers Security Consulting PremiumVerified PA20 years - CPTED - Emergency Preparedness - Executive Risk Advisory - +3 CEDP · Certified Anti Terrorism Specialist (CAS) · Certified Counter Terrorism Practitioner (CCTP) · Certified Instructional Designer · CHPP [View profile](https://findasecurityconsultant.com/consultants/jackson-chambers-ma/) --- Source: