The Investigative Services division is comprised of 13 units and task forces. The primary function of the ISD is to:

  • Aggressively investigate crimes within the primary jurisdiction of the Westchester County Police
  • Provide specialized assistance when requested to local Westchester County law enforcement agencies for problematic, long-range, large-scale or complex investigations. 

ISD Units include:

  • General Investigations Unit
  • Forensic Investigations Unit
  • Narcotics Unit
  • Warrant-Fugitive Unit
  • Crime Analysis Unit 

ISD detectives also serve on a number of multi-agency task forces, including:

  • Drug Enforcement Administration Task Force
  • FBI Violent Crimes Task Force
  • FBI Joint Terrorist Task Force
  • U.S. Marshal’s Fugitive Task Force.