Pubs and clubs to be closed between 4am-7am

http://www.adelaidenow.com.au/news/south-australia/three-hour-alcohol-ban-to-stop-binge-drinking-violence/story-e6frea83-1226026123310
I fail to see how forcing a whole bunch of drunk people out in to the street at the same time is going to curb violence!
OPPOSITION Leader Isobel Redmond says closing pubs and clubs early will secure South Australia's reputation as a "nanny state."
Ms Redmond said venues should be able to open as long as their licence permits to facilitate a vibrant and fun city precinct.
I fail to see how forcing a whole bunch of drunk people out in to the street at the same time is going to curb violence!