Westminster Council have said they are checking but it is unlikely that they would have given permission for the drummers to perform in Soho on Saturday evening. The council is responsible for enforcing noise limits in the area.
"Helen Mirren did a fantastic job of enforcement for us."
More top news
Police in Greenwich are trying to identify a man after an assault on an elderly woman in Plumstead.
Relatives of those killed in the Hyde Park attack 35 years ago marched in central London to bring an accused bomber to justice.
A new system will allow authorities to track private drones as research finds the heavier flying gadgets could smash plane windscreens.