There are no actual Halloween laws, but there are some laws you should be aware of if throwing a Halloween party.
The holiday is a time to get into (or out of) character and have a little fun. This often involves copious amounts of alcohol, loud noise, and very late nights. It also tends to involve friends of all ages.
Such a mixture can be volatile. And it in some cases, it can be illegal. So as we approach the big night, keep the following in mind.
Halloween Law #1: Serving Alcohol to Minors
It's illegal to provide alcohol to minors. As in, anyone under the age of 21. You may also be liable if you knowingly allow someone else to serve a minor under your roof.
This would be called contributing to the delinquency of a minor.
Halloween Law #2: Social Host Liability
If an intoxicated guest causes an injury to a third party, it may be your responsibility. In states with social host liability laws, you should never continue to serve an already intoxicated adult, or even think about providing alcohol to a minor. Their motor vehicle accidents will almost always become your problem.
In fact, you should consider a key master a la Say Anything, or keep a cab company on speed dial.
Halloween Law #3: Noise Ordinances
Just because you didn't escort a toddler from door to door, it doesn't mean that your neighbors didn't. They want their sleep, or at least a little peace and quiet.
Noise ordinances apply on Halloween. Turn the music down and push your guests inside at the designated time. Local law enforcement would be happy to provide you with a bit of encouragement.
And if that isn't motivation enough, know that following the above Halloween laws can ultimately help ensure a happy and haunted holiday.