The prevalence of re-arrest among drunken drivers in relation to diffe
rent blood alcohol concentrations (BAG) at the time of the offences wa
s studied. Between 38 and 50% of arrested drunk drivers were re-arrest
ed for similar offences. The frequency of re-arrests was, however, red
uced during 1992 compared with 1986, but only significantly for those
with a low BAC interval (60-90 mg/dl). We conclude that drivers with h
igh re-arrest rates have a careless attitude to the Road Traffic Act a
nd require a different treatment and follow-up programme.