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PORTLAND, Maine (NEWS CENTER) -- Underage drinking was the subject of a forum in Portland Tuesday.

It's a topic that's been in the headlines this year, after a couple from Falmouth went to trial for allowing minors to drink at their home.

Barry and Paula Spencer of Falmouth faced charges of allowing minors to drink alcohol when they hosted a party after their son's baseball team won the state championship. That party spiraled out of control, with hundreds of students showing up. The case caused heated debate among members of the community, and the jury was unable to reach a verdict. Now, law enforcement, school officials and advocates for teen sobriety are trying to build on the momentum of the trial, to make sure parents know how to keep alcohol out of teen parties. Jo Morrissey of 21 Reasons says the best way to avoid a situation like that is to get other parents involved.

"If you're going to have your child's team over for a celebration, every member of that child's team, their parents are affected and so is the community around them," Morrissey said. "So by engaging the community in that celebration, it can really go a long way."

21 Reasons offers some tips to parents throwing parties for their teens:

- Set a clear number of guests and make it clear that the party is invitation only.

- Discourage teens from going back and forth to their cars.

- If you suspect a guest is intoxicated, call his or her parents immediately, and be prepared to call the police and shut the party down if it gets out of control.

You can find more tips and information on the 21 Reasons website.