More than 500,000 professionals in the law enforcement and security fields have attended our interview and interrogation training programs since they were first offered in 1974. Participants come from both the private sector and the public sector, which includes all levels of law enforcement and government (from every U.S. State and Canadian Province, as well as countries in Europe, Asia and the Middle East) as well as retail, finance, health care, manufacturing, gaming, education, etc.