General Investigators

Criminal Investigations includes the following

  • Crime scene reconstruction and analysis
  • Examination of patterns and profiles
  • Identification and apprehension of suspects
  • Information sharing and dissemination
  • Interview and interrogation
  • Preparation for prosecution
  • Search warrant affidavits
  • Working with victims and witnesses

Domestic Violence

The Detective Division has a detective assigned to follow up on domestic violence related incidents. The detective investigates and prosecutes suspects in domestic violence cases. The detective also assists victims by arranging referrals for counseling, legal assistance, shelters, and support groups. The detective monitors these domestic situations to prevent the escalation of violence in these incidents.

Narcotics Investigator

A detective is assigned to the Southern Middlesex County Drug Task Force which is comprised of investigators from Watertown, Waltham, Newton, Belmont, Lexington, Arlington, Lincoln and Weston. This unit is responsible for targeting and prosecuting those individuals and groups involved in the distribution of illegal narcotics and drugs. It works with other local, State and Federal agencies in the combating of drugs.


The Detective Division also is responsible for the collecting, processing and examining of all forensic evidence. They received specialized training in the preservation and collection of physical evidence at crime scenes and present expert testimony in court cases.


The Detective Division is also responsible for the issuance of Firearms, Hackney and Hackney Carriage Licenses. This unit also acts as the enforcement arm of the Watertown Licensing Board. Investigations are conducted on all prospective licensees of the Town for alcohol, auto repair, common victuallers, etc. The Licensing unit enforces the rules, regulations and laws of the Town and commonwealth as they pertain to licensed activities within the Town.