Police will be on high alert this Australia Day because it lands on a Saturday and are warning NSW revellers there'll be zero tolerance for crime.
'Certainly we consider this Australia Day, on a Saturday, a risk, particularly for alcohol consumption,' said NSW Police Assistant Commissioner Max Mitchell said on Wednesday.
'We are aware that people do have a couple of days to enjoy celebrations before returning to work.'
More than 2000 police will be deployed in the Sydney metropolitan area and other parts of the state in Operation Westchester, kicking off at 6am (AEDT) on Australia Day and continuing into the early hours of Sunday morning.
Police will focus on alcohol-related crime and antisocial behaviour, with no tolerance for criminal activity.
Areas that have programmed events, including Sydney, Newcastle and Tweed Heads, and the country music festival in Tamworth, will be targeted.
Marine officers will be a strong presence, particularly in Port Hacking, Botany Bay and Sydney Harbour.
Mr Mitchell, who will lead the operation, urged revellers not to drink excessively.
'We're not saying don't drink. We're saying don't overindulge.'
The last time Australia Day fell on a weekend was 2008, he said.