The Massachusetts Department of Correction is the government agency responsible for operating the prison system of the Commonwealth of Massachusetts in the United States. The Massachusetts Department of Correction is responsible for the custody of about 8,292 prisoners throughout 16 correctional facilities and is the 5th largest state agency in the state of Massachusetts, employing over 4,800 people. The Massachusetts Department of Correction also has a fugitive apprehension unit, a gang intelligence unit, a K9 Unit, a Special Reaction Team (SRT), and a Tactical Response Team (TRT). Both of these tactical units are highly trained and are paramilitary in nature. The agency is headquartered in Milford, Massachusetts and currently headed by Commissioner Carol Mici.

Milford is a town in Worcester County, Massachusetts, United States. The population was 30,379 according to the 2020 census. First settled in 1662 and incorporated in 1780, Milford became a booming industrial and quarrying community in the 19th century due to its unique location which includes the nearby source of the Charles River, the Mill River, the Blackstone River watershed, and large quantities of Milford pink granite.