The Solid Waste Department said calls for graffiti cleanup across the city in the past year are up by more than 15,000 incidents. Clean-up crews said reports made to 311 have played a huge part.

There are bubble-wrapped canvasses against a wall and a shabby ping-pong table in the foyer. ... It's the extension of graffiti, which has particular interest to both the arts and corporate world." ...

Records obtained by the Globe show the graffiti was reported to the police on Dec. 25, 2022, about two months before the investigation launched.

Graffiti slowly made its way back to the walls, covering parts of the city-commissioned artwork. Then, in July 2008, the alley was white-washed of Tombeau Cost’s mural by vandals. Instead of the ...