The Clarendon Vale man, 29, was charged and bailed for the first offence of exceeding 0.05 and he was disqualified from driving.

Police found the same driver again a short time later at Copping.

He was charged with exceeding 0.05 and driving while disqualified.

Police conducted 2435 random breath tests and 22 oral fluid drug tests on drivers leaving the festival at Marion Bay.

Most people were responsible about drink-driving and many had organised a lift home with parents, friends or a designated driver, police said.

However, provisional drivers mainly believed that alcohol would have disappeared from their system after not drinking for several hours.

The number of drink-drivers police charged was more than last year's nine, but police checked fewer cars - 1500 - last year.

Last year there was also one positive drug test.

The Road Safety Advisory Council hosted a volunteer-run breath-testing site at the festival and 3400 people used the service.

Chairman Jim Cox said it was easy for people to underestimate the effects of alcohol, so people used the breath-testing facility to ensure they could get home safely.

Police results from drivers leaving the Falls Festival:

?13 people charged with drink-driving offences.

?The highest reading was a blood-alcohol concentration of 0.120.

?Five of the 13 drivers charged were provisional licence-holders. 

Provisional driver BAC readings were from 0.010 to 0.042.

Four excessive drink-driving notices were issued, incurring immediate disqualification.

All drug tests returned negative results.