NYC Civilian Complaint Review Board (CCRB) | 3,351 followers on LinkedIn. The NYC Civilian Complaint Review Board (CCRB) is the nation's largest independent oversight entity of the largest police force in the country. As an impartial body, the CCRB investigates, mediates and prosecutes complaints of misconduct by NYPD officers. It handles four basic types of misconduct: Excessive or Unnecessary Force; Abuse of Authority; Discourtesy; and Offensive Language.