Four Detectives comprise the Detective Bureau, one assigned to each patrol squad, under the supervision of Det. Lt. Steven Ferraioli. Detectives investigate crimes and offenses, conduct follow-up investigations as needed, and provide support services to the Patrol Unit, including the collecting and logging of evidence and property. Pro-active investigations, such as plainclothes narcotics enforcement, are also conducted. Detectives also perform background investigations on all police officer recruits and for Alternate Route candidates at the Morris County Police Academy. Detectives are also assigned to many administrative functions: discovery requests from court, expungements, O.P.R.A. requests, police report releases, public affairs and information duties, internal affairs investigations, Terminal Agency Coordinator (TAC) function, etc.