Brixton was the scene of riots in April 1981 at a time when Brixton underwent deep social and economic problems—high unemployment, high crime, poor housing, no amenities—in a predominantly African-Caribbean community. The Metropolitan Police began "Operation Swamp 81" at the beginning of April, aimed at reducing street crime, largely through the repeated use of the so-called sus law, which allowed police officers to stop and search any individual on the grounds of mere "suspicion" of possible wrongdoing. Plain clothes police officers were dispatched into Brixton, and within five days almost 1,000 people were stopped and searched under this law. There was intense local indignation at this, since the vast majority of those stopped by the police were young black men. The riot resulted in almost 279 injuries to police and 45 injuries to members of the public, more than a hundred vehicles were burned (including 56 police vehicles), and almost 150 buildings were damaged, with 30 burned. There were 82 arrests. Reports suggested that up to 5,000 people were involved in the riot.