Riot Act felt uncertain of their power to take action to stop the riots without a reading of the Riot Act. After the riots, Lord Mansfield observed that the Riot Act did not take away the pre-existing power of the authorities to use force to stop a violent riot; it only created the additional offence of failing to disperse after a reading of the Riot Act. The Riot Act was read prior to the Peterloo Massacre of 1819, as well as prior to the Bristol Riots at Queen's Square in 1831. Both are held to be related to the Unreformed House of
Peterloo Massacre to someone rumoured to have taken one of the women reformers' flags as a souvenir. Peace was not restored in Manchester until the next morning, and in Stockport and Macclesfield rioting continued on the 17th. There was also a major riot in Oldham that day, during which one person was shot and wounded. The exact number of those killed and injured at Peterloo has never been established with certainty. Sources claim 11–15 killed and 400–700 injured. The Manchester Relief Committee, a body set up to provide relief for the victims of Peterloo, gave the number of injured as 420, while