Advanced Interviewing Concepts was founded by Mark McClish, a retired Deputy U.S. Marshal. From 1991 - 1999, Mr. McClish taught interviewing techniques at the U.S. Marshals Service Training Academy. There he developed his Statement Analysis techniques for detecting deception in a verbal or written statement by analyzing the words a person uses. Advanced Interviewing Concepts provides interviewing skills training in the form of Statement Analysis seminars as well as online training.