POLICE officers will be out in force at pubs and public areas in Queensland and New South Wales Tuesday, warning that they will not tolerate drunken behaviour.
Hundreds of extra police will be out in a "visible presence" in both states as part of efforts to curb anti-social behaviour.
NSW Police Acting Assistant Commissioner Kyle Stewart said he wanted people to enjoy the holiday, but police would not tolerate "alcohol-related violence".
"We will also have drink and drug drivers in our sights. Hundreds of traffic police will be on duty tomorrow. So if you expect to drink and drive, expect to be pulled over and tested," he said.
Queensland Police Commissioner Ian Stewart had a similar message, urging people to celebrate Australia Day "in its intended spirit of tolerance and respect for others".
"However, there is no place for violence or anti-social behaviour in Queensland and officers will not tolerate it," he said.
"We know all too well how aggressive situations can escalate quickly and the consequences can be fatal."