A man is accused of distributing crystal meth and fentanyl out of a Mattapan house that’s located two doors down from where Massachusetts Attorney General Andrea Campbell lives.

Kemar Barcley was arrested at a home in Mattapan on Wednesday, just 10 days shy of his 32nd birthday, on three charges of trafficking Class A and Class B drugs, namely crystal methamphetamine and fentanyl.

He was arraigned the same day in municipal court in Dorchester and ordered held without bail pending a dangerousness hearing scheduled for Dec. 13.

A spokesperson for Campbell declined to comment on the arrest.

According to the police report, an informant told Boston cops sometime last month that Barcley was a major player in Boston’s crystal meth scene. Police say that an undercover state trooper then performed three controlled purchases over two weeks that amounted to a total of 45.5 grams of crystal and three pressed pills of fentanyl.

Investigators turned up the heat by getting a warrant to ping Barcley’s phone and secretly track it, which led them to a particular house in Mattapan just two doors down from the residence of the state attorney general — an address the Herald confirmed through state records. The Herald is withholding the address and street to preserve Campbell’s privacy.

The arrest went down in broad daylight. The State Police Special Tactics and Operations Team moved in at 6:01 a.m. Wednesday to conduct a “knock and announce” search of the home, according to the police report, though none of the five people inside were keen on answering. So police breached the front and rear doors. Downstairs were two people, and upstairs were three, including Barcley.

None of the four other men in the home had any warrants for their arrest, but two of them allegedly had drugs on them. Police say Edward Gabor, 63, had about two grams of crystal in his backpack and Patrick Dunn, 53, had about 28 grams of crystal in his pants pocket. Gabor was told he would be subjected to a criminal complaint in the future and was allowed to leave, whereas Dunn was arrested then and there.

Inside the home, police allege in their report, was a plastic bag containing about 26 grams of crystal meth inside a black safe located in a dresser drawer in one of the bedrooms which also contained Barcley’s phone police had been tracking, a sandwich bag with another 6 grams of crystal inside a black backpack in a second bedroom, as well as assorted objects the police marked as evidence.

Reporter Chris Van Buskirk contributed to this report.