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 place underage individuals (under 18) who illegally possess alcohol or cannabis into temporary custody on a first offense, then notify their parent or guardian. For subsequent violations (second or third), it mandates written warnings for all ages, with parents notified for minors and referrals to community services (like counseling) for both the minor and their guardian. It specifies that refusing these services won’t result in legal penalties. The law applies directly to minors caught violating underage alcohol/cannabis possession rules in public places, schools, or vehicles. It does not impose fines, jail time, or court action for non-compliance with service referrals.