Implementing Physical Protection Systems: A Practical Guide
David G. Patterson, CPP, is the founder of Patterson & Associates, an international security consulting firm engaged in security consulting for corporate clients.  He has over 25 years experience as a corporate safety and security manager and consultant for the worldwide operations of high technology companies, industrial companies, schools, and the United States government.  He has conducted in-depth anti-terrorism assessments, risk analyses and vulnerability studies and has developed and implemented security and safety policies, standards and procedures for several organizations.  In addition, he has designed complex access control, CCTV, intrusion detection and alarm systems for large industrial sites, seaports, off-shore facilities, airports, schools and building complexes.