The Gordon Riots of 1780 was a massive anti-Catholic protest in London against the Papists Act of 1778, which was intended to reduce official discrimination against British Catholics. Lord George Gordon, head of the Protestant Association warned that the law would enable Catholics in the British Army to become a dangerous threat. The protest evolved into riots and widespread looting. Local magistrates were afraid of reprisals and did not issue the riot act. There was no repression until the Army finally moved in and started shooting. The main violence lasted from 2 June to 9 June, 1780.