The Applicant Investigation Unit (AIU) is responsible for the hiring of all Correction Officers throughout the NYC Department of Correction. Their directive is to ensure that the New York Department of Correction hires the most qualified Correction Officer candidates to join the Department. The candidates are chosen/selected from the Civil Service List. The candidates are investigated and evaluated medically, which includes an agility test and a psychological evaluation to determine the candidate’s fitness for duty. The applicant Investigation Unit investigates thousands of candidates.