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Chief John J. Sullivan

Chief John J. Sullivan's roots to Hamden were one of the reasons that he chose to be a part of the Hamden Police Department.  He graduated from Hamden High School in 1989 and then earned his Bachelor of Science degree in Law & Criminology from the University of Connecticut in 1993.

He began his police career with the Hamden Police Department on June 23rd of 1995 where he was assigned to the patrol division. 

In 1999, Chief Sullivan was transferred to the Street Crime Unit of the Investigative Services Division where he served as an investigator and undercover narcotics officer.
He was promoted to Detective working with the Statewide Narcotics Task Force in November of 2004. During this time, he conducted long term investigations throughout the State of Connecticut relating to large scale narcotic trafficking.   He also investigated all major crimes and collaborated with other agencies including other Police Departments, Federal & State Agencies, and Federal & State‚Äôs Attorneys.

Chief Sullivan was promoted to the rank of Sergeant in July of 2006.  During this time, he supervised the patrol officers and assisted in the training of new officers.  In July of 2018 he was promoted to Lieutenant.  He supervised the sergeants, officers and non-sworn support personnel.  He worked with the Purchasing Department on all department purchases and contracts.   He also helped the Chief of Police prepare and manage the department budget. 
In January of 2020, Chief Sullivan was promoted to the rank of Deputy Chief.  He supported and assisted the Chief of Police with the executive management and leadership of the entire department.

On July 1, 2020, he was appointed by Mayor Curt Leng as the 11th Chief of Police for the Hamden Police Department.  As Chief his focus is on reducing violent crime, enforcement of traffic laws, fostering community engagement, police recruitment, training and integrity, and the use of technology to enhance efficiency and effectiveness with budget challenges.

Chief Sullivan is the recipient of numerous department awards.  He earned 16 Letters of Commendation from the Hamden Board of Police Commissioners, 13 Letters of Recognition from the Office of the Chief of Police, and 11 Unit Citations from the Hamden Board of Police Commissioners.  He also received 3 Certificates of Appreciation.

Chief John Sullivan is an accomplished 25 year veteran of the Hamden Police Department who has served in all facets of the department and has been to 53 training classes that involved a myriad of topics during his tenure.


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  • (203)230-4000
  • 2900 Dixwell Ave., Hamden, CT
Hamden PD, Patch

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