A preliminary study has found the lockout laws have cut down on the number of drunk patrons in Fortitude Valley.
The legislation, which requires venues to call last drinks by 3am, has noted a decrease in the number of people significantly intoxicated throughout the night, but there has been no significant change in the average blood alcohol level.
Lead researcher Peter Miller, from Deakin University’s School of Psychology, says long-term research is needed to see if changes remain beyond the first few months.