The debate about letting your teen drink before they are 18 can be a minefield. The Goulburn Valley and Mildura were the worst offenders followed by Bairnsdale, Frankston, Knox, Horsham and Bendigo. Police would not confirm areas where there were less than two fines handed out, but added the issue was "widespread." It was made a criminal offence in November 2011 for adults to supply alcohol to anybody else's children at their home, unless permission was granted from the children's parents. Teen parties promoted on Facebook continue to give police headaches and officers are now trawling social media sites and shutting down parties. Last year about 30 gatecrashers caused chaos at a girl's 16th birthday, a mother was punched in the head when a party got out of control and in July police had to shut down a party after it attracted 300 partying teens. Youths as young as 12 were found drinking at a party with about 60 people in Mt Martha, with the host's mother holidaying in Bali, while Rosebud police admitted to attending violent, alcohol and drug-fuelled confrontations at teen parties most weekends. Editorial: One drink too many Police were given power under the new legislation to act on parents' complaints about their children drinking at another person's house. The amendment to the law saw the level of fines that applied to parents inside a residential home were equivalent to alcohol being served to an under-age person at a licensed venue. Victoria Police spokeswoman Kate Fawcett said a crackdown on parents was part of operations targeting alcohol-related offences. She said parents were caught out during out-of-control parties and when other parents alerted police. Mental Health Minister Mary Wooldridge said the figures showed the policy was working. "It's very positive that Victoria Police are effectively enforcing the new supply of alcohol to minors law and imposing penalties for breaches of the law," Ms Wooldridge said. Goulburn Valley 6 Mildura 5 Bairnsdale 4 Frankston 3 Knox 3 Bendigo 3 Horsham 3 Wangaratta 3