For more information on policing in Massachusetts, see entry on Boston Police.
- Association/Collaboration – Amazon
The Winchester Police Department participates in Amazon’s "Ring network," which as reported in The Verge, "lets law enforcement ask users for footage from their Ring security cameras to assist with investigations." The Ring is an Amazon-produced "video doorbell, which allows Ring users to see, talk to, and record people who come to their doorsteps," and which "sends notifications to a person’s phone every time the doorbell rings or motion near the door is detected."
- Partnership/Ownership/Membership – Northeastern Massachusetts Law Enforcement Council (NEMLEC)
The Winchester Police Department is a member agency of the Northeastern Massachusetts Law Enforcement Council (NEMLEC). NEMLEC is a "law enforcement council," which organizes SWAT teams and obtains military equipment for use by local police and other law enforcement agencies, while operating largely out of public view as a semi-private organization.