A Boston police officer was arraigned in Dorchester court on Monday on a charge that he tried to intimidate an internal affairs investigator whose probe landed him on administrative leave for moving out of Boston before his union contract allowed him to.

The defendant—Matthew Morrissey — allegedly drove up to the detective’s house, parked his pickup truck out front, “rolled down his window and stared at the fellow officer,” the Suffolk County District Attorney’s office reported. The DA’s office did not say where the incident took place, but Dorchester District Court handles arrests from Dorchester and Mattapan.

WCVB reported that this was the third time that Morrissey tried to intimidate the same detective; in another instance last fall, he allegedly slowly drove his truck around the detective’s car. Under their union contract, Boston police officers are required to live within city limits for the first ten years on the job; after that, they can move out of Boston. Morrissey, who began his BPD career on Dec. 9, 2013, lives in Milton, officials said.

In a statement, acting DA Kevin Hayden said: “All of us in law enforcement are supposed to protect the residents of the municipalities in which we serve, and we are rightfully held to the highest standard. The actions of Officer Morrissey are troubling on many levels: he lied about where he lived, and he intimidated a fellow officer who had placed him on administrative leave.”

Judge Thomas Kaplanes released Morrissey on personal recognizance and ordered him to stay away from the detective’s home and the anti-corruption division of the Boston Police.

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A 40-year-old Dorchester man faces assault charges following what police say was an unprovoked attack on another man inside a Red Line train at JFK-UMass station on March 4. The suspect, David Washington-Halfkenny, is alleged to have struck the victim numerous times with a blunt object as he sat on the train. The male victim suffered lacerations and was reportedly “bleeding profusely from his face and head” as his attacker stood over him shouting. Officers took Washington-Halfkenny into custody at the scene around 8:50 p.m. and EMTs transported the victim to a local area hospital.

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Boston Police arrested a 21-year-old Boston man last week and charged him with carrying an illegal firearm. The arrest came after a traffic stop in the vicinity of 23 Adams St. near Meetinghouse Hill around 8:45 p.m. on Wed., March 2. The suspect, Jamal Garcia, was spotted by officers driving a car with “excessively dark window tint” travelling on Quincy Street. Police say a search of the vehicle turned up a Smith & Wesson M&P 40c and a quantity of “a powdery substance believed to be Fentanyl” along with “a white rock like substance believed to be crack cocaine.” Garcia faces weapons and drug trafficking charges in Dorchester District Court.