internal affairs

Internal affairs (often known as IA) is a division of a law enforcement agency that investigates incidents and possible suspicions of criminal and professional misconduct attributed to members of the parent force. It is thus a mechanism of limited self-governance, "a police force policing itself". The names used by internal affairs divisions vary between agencies and jurisdictions; for example, they may be known as the internal investigations division (usually referred to as IID), professional standards or responsibility, inspector or inspectorate general, internal review board, or similar.