Ministers have previously rejected random breath-testing but it is understood that there was a change of heart when the results of the latest Christmas campaign against drink-driving were revealed.
These showed that while the number of tests carried out in England and Wales rose six per cent, the number of drivers who failed fell to 7,800 - down from 9,700 in 2006.
Ministers believe that the results prove that increasing the number of tests acts as a deterrent.
(I find it strange that the surveillance and nanny state, more commonly known as Great Britain, never had random, roadside breath tests before. - captain_kirk)
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