If you're underage and are caught drinking, you face a minor in possession charge. This charge is usually placed against those between the ages of 13 and 17. Minor in possession charges get filed for the possession of alcohol or for any offenses that involve firearms. It can also be used when a person between the ages of 13 and 20 is found guilty of a drug offense.
Minor in possession penalties apply to those under 18 of all ages if they're found in illegal possession of a firearm or commit any other offenses while in possession of a firearm used during the act. For instance, robbing a store while possessing a firearm could lead to a minor in possession charge and conviction.