Two 22-year-old men have become the first charged for allegedly organising a party that spiralled out of control.
They face a year behind bars and a $12,000 fine if convicted of organising a party that became an out-of-control gathering under the controversial laws, which came into effect last month.
The men allegedly hosted a party in Padbury that police declared an out-of-control gathering.
Police were called to the Gibson Avenue home about 11.30pm on December 22 by neighbours complaining of yelling, screaming and other disruptive behaviour in the street.
The party had started more than 11 hours earlier when more than 40 people gathered.
Police claimed bricks were being thrown when they arrived and riot squad officers, police on horses and in a helicopter were used to move on the drunken crowd. Three guests from the party were charged with failing to obey an order at an out-of-control gathering.
At the time, the alleged hosts claimed two of the guests were arrested after they refused to move on because they were waiting for a lift home.
The men, one from Innaloo and another from Kingsley, have this week been charged by summons to appear in Joondalup Magistrate's Court on February 20.
Police Minister Liza Harvey said she was pleased police had used the provision in the new legislation.