In 1908 the organisation published its first AA Members' Special Handbook containing a list of nationwide agents and mechanics with a free legal service the following year.[1]
AA patrols on bicycles warned motorists of police speed traps ahead. In 1910 in a legal test case ('Betts -v- Stevens') involving an AA patrolman and a potentially speeding motorist, the Chief Justice, Lord Alverston, ruled that where a patrolman signals to a speeding driver to slow down and thereby avoid a speed-trap, then that person would have committed the offence of 'obstructing an officer in the course of his duty' under the Prevention of Crimes Amendment Act 1885.[4][5] Subsequently the organisation developed a coded warning system, which was used until the 1960s, whereby a patrolman would always salute the driver of a passing car which showed a visible AA Badge unless there was a speed trap nearby, on the understanding that their officers could not be prosecuted for failing to salute.[6] The AA Handbook included the following message many times: "It cannot be too strongly emphasised that when a patrol fails to salute, the member should stop and ask the reason why, as it is certain that the patrol has something of importance to communicate."[2]
http://en.wikipedia.org/wiki/The_Automobile_Association
