Daniel J., PhD (Embry-Riddle Aeronautical University Worldwide and Private Investigator & Security Consultant, Harrisburg, Pennsylvania, USA) Benny 
Private Investigation and Homeland Security [EPUB ebook] 

The threat against the homeland continues and the private investigator plays a critical part in this effort. This includes in providing criminal, civil and background investigation, protective service, security consulting and electronic sweeps. The text will provide an overview of the role of private investigation in protection of the homeland and show how such skill can be utilized by business and government in this effort.