The Newton Police Detective Bureau is located at 25 Chestnut St. West Newton, MA 02465, and responsible for the follow up investigation of all serious crimes committed in the City of Newton. This division is responsible for intelligence analysis and dissemination, coordinating dignitary protection with state and federal agencies,  and case maintenance of ongoing long-term investigations. Detectives conducting intelligence analysis, collects, analyzes and disseminates information that has value to officers in conducting their duties. This includes significant arrests, recent releases from correctional facilities, parole and probation information, information on known criminal offenders with modus operandi and crime specialty, and identification of potential targets for property crime and crimes against persons. Detectives also investigate adult missing persons cases and adult sexual assault cases.
Officers selected to work in the Detective Bureau receive specialized training in crime scene investigation and the collection of evidence, interviewing and interrogation techniques, arson investigation, computer crimes, drug investigations, sexual assaults and homicide investigations.
A Detective Sergeant is assigned as liaison to the Newton District Court and the Middlesex Superior Court. The Det. Sgt. Court Prosecutor monitors cases as they proceed through the judicial system to ensure that a case is presented in a professional manner and that as a result of an investigation, the Commonwealth is able to present the strongest case possible. The Sergeant actively communicates with Newton Police Officers, the District Attorney’s office, Victim-Witness Advocates, the Newton Police Social Worker, other police agencies and personnel at the Newton District Court.
The Detective Bureau is also responsible for management and issuance of licenses to carry firearms and firearms identification cards. The Commander in charge of the Detective Bureau is Captain Christopher Marzilli.


The Detective Bureau manages the review and periodic inspection of all second hand dealers in the city.
The bureau also manages the Sex Offender Registry for the City of Newton. A designated detective registers, photographs, fingerprints and monitors convicted sex offenders who live in Newton and monitors those who are employed in the city. Citizens are welcomed to review this information on the States’ “Mass.gov” website, specifically on the “SORB” subsection. (Sexual Offender Registry Board)
A member of the Detective Bureau is currently assigned to the US Drug Enforcement Administration (DEA) Boston Strike Force.
A member of the Detective Bureau is currently assigned to the Federal Bureau of Investigation (FBI) Human Trafficking/Child Exploitation Task Force.
Several members of the Detective Bureau are assigned to the Suburban Middlesex County Drug Task force.
The Newton Police Department maintains a telephone line where callers who wish to remain anonymous can leave information regarding drug or criminal activity. Persons wanting to report such activity should call the Tip Line at 617 796 2121.
To contact the Detective Bureau, please call 617 796 2104.