Braintree police searched the four locations Wednesday, after several weeks of investigation. They found marijuana plants, packaged marijuana, and equipment used to grow marijuana, police wrote in a press release.

Police said a Braintree house was condemned and at least one person arrested after they uncovered an illegal marijuana-growing operation that functioned in four locations in Braintree, Quincy, and Westford.

Braintree police have been investigating an alleged marijuana growing operation in Braintree, Quincy, and Westford.

Braintree police began investigating the home at 350 Shaw St. in December, believing it to be a marijuana “grow house,” and then discovered the three other addresses allegedly connected to the operation: 360 Belmont St. and 16 Newport Terrace in Quincy and 75 Tenney Road in Westford.


Police did not say how many marijuana plants were found but said the “searches resulted in the seizure of enough Marijuana to meet the Trafficking weight element of the Massachusetts drug laws,” which prohibits the cultivation of 50 pounds or more of marijuana.

“These unregulated home grow operations can create a serious public safety hazard for several reasons,” Braintree police wrote in the press release. “Dangerous chemicals and faulty wiring are often used to set up these sites and most often the homes are not lived in. Additionally they create a prime atmosphere for black mold to form and flourish.”

Xu Feng Wang, 30, of Boston was arrested at the Braintree address Wednesday and charged with trafficking in a Class D substance (marijuana) and conspiracy to violate drug laws.

Two other people are also facing charges.

A 48-year-old Quincy man will be charged with trafficking in a Class D substance (marijuana), subsequent offense, and a 23-year-old Quincy woman will be charged with trafficking in a Class D substance (marijuana). As of Thursday afternoon, neither had been arrested.

Police wrote on Twitter on Wednesday that the Board of Health had condemned the home, citing “faulty wiring and dangerous chemicals.”


“Yes marijuana is legal, growing it in our neighborhoods is not,” police tweeted.

Growing marijuana in a private residence is legal in Massachusetts, but the number of marijuana plants Braintree police found was above the number allowed.

Residents can grow up to six marijuana plants at home, and up to 12 plants if the home has two or more adults.

Braintree police

Braintree police

Felicia Gans can be reached at felicia.gans@globe.com. Follow her on Twitter @FeliciaGans.