Requires temporary detention and notification to parent or guardian of underage person who unlawfully purchases or possesses alcoholic beverages or cannabis.

This bill requires law enforcement to issue written warnings for underage alcohol or cannabis possession/consumption in schools, vehicles, or public spaces, with temporary custody and parent notification for minors under 18 on first and subsequent violations. For second violations, officers provide community service referrals, while third violations trigger written notices and referrals for both minors and parents. The law mandates that parents receive written notifications detailing the violation and access to counseling, tutoring, or mentoring services through community agencies. Refusing these services does not lead to legal penalties. The bill directly affects minors under 18 who violate alcohol/cannabis laws and their parents or guardians.