Can a private investigator tap your phone to get information? Learn about what can and can't be done.

Have you ever wondered what gadgets spies used in the past and during the cold war? Check out our list of declassified vintage espionage tools.

Read our frank interview with a man about his affair with a married woman; how it started, the upsets caused, lessons learned, and if it lasted.

Find out how much a private investigator costs to follow someone so you know what price you can expect to pay.

Learn how to use a spy watch camera correctly. Follow our instructional guide for using a spy watch to secretly record someone.