American Association of Police Polygraphists

The American Association of Police Polygraphists (AAPP) is a professional organization that supports and certifies experts who use lie detector tests in law enforcement. Its members are trained to conduct and interpret polygraph examinations to assist in criminal investigations, personnel screenings, and truth verification. The AAPP promotes high standards, ethical practices, ongoing education, and scientific research within the field. By providing certification and resources, it aims to ensure reliability and professionalism among law enforcement polygraph examiners nationwide.