booze bus

Noun

 * 1)  A police vehicle used for administering blood-alcohol tests (to drivers), generally a mid-size bus converted or fitted out for the purpose.
 * 2) * 1982 December 2, Police 'booze buses' gear up for the start of random breath tests, Sydney Morning Herald, page 16, quoted in 1985, G. A. Wilkes, A Dictionary of Australian Colloquialisms, second edition, Sydney University Press, ISBN 0-424-00113-6.