In the wake of the French Revolution, the British Government became uneasy about possible revolutionary conspiracies. Amongst other repressive measures, Pitt's government proposed to introduce the Unlawful Societies Act in 1799, which declared that any body which administered a secret oath was illegal. Acting quickly, a delegation representing the Ancients, Moderns and the Grand Lodge of Scotland arranged a meeting with the Prime Minister. The delegation included the Duke of Atholl, Grand Master of the Ancients, and Past Grand Master Mason of the Grand Lodge of Scotland, and the Earl of Moira, Acting Grand Master of the Moderns (the Grand Master being the Prince of Wales). As a result of this meeting, Freemasons were specifically excluded from the act, although lodges were obliged to return a list of members to the local Clerk of the Peace, a practice which continued until 1967. It also demonstrated that the two rival Grand Lodges could act together.