Since 1981,
Truth Detection Laboratories has provided polygraph testing for
law enforcement agencies, private parties and law firms. TDL welcomes your questions concerning polygraph testing and its potential use as an investigative tool. Call us for a confidential, no-obligation consultation to help you decide whether polygraph testing is an appropriate solution to your particular situation. For over
70 years, polygraph testing has been used by law enforcement entities and government agencies as an investigation tool.