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 consequence of Peterloo was the foundation of the "Manchester Guardian" newspaper in 1821, by the Little Circle group of non-conformist Manchester businessmen headed by John Edward Taylor, a witness to the massacre. The prospectus announcing the new publication proclaimed that it would "zealously enforce the principles of civil and religious Liberty ... warmly advocate the cause of Reform ... endeavour to assist in the diffusion of just principles of Political Economy and ... support, without reference to the party from which they emanate, all serviceable measures." Events such as the Pentrich rising, the March of the Blanketeers and the Spa