Truth or Lie Polygraph Examination Agency Over 25 years of experience in law enforcement, interrogation and truth detection. Martin Schermerhorn, certified polygraph examiner, has advanced training and is current in the latest techniques, and technologies. Local to San Gabriel, Pomona, and Big Bear Valleys No travel charges to local area, such as: Glendora, Azusa, Claremont, Montclair, La Verne, ...