(a) Offense defined.–A person commits a summary offense if he, being less than 21 years of age, attempts to purchase, purchases, consumes, possesses or knowingly and intentionally transports any liquor or malt or brewed beverages, as defined in section 6310.6 (relating to definitions). For the purposes of this section, it shall not be a defense that the liquor or malt or brewed beverage was consumed in a jurisdiction other than the jurisdiction where the citation for underage drinking was issued.
(b) Penalty.–A person convicted of violating subsection (a) may be sentenced to pay a fine of not more than $500 for the first violation and not more than $1,000 for the second and each subsequent violation.
(c) Preadjudication disposition.–
(1) When a person is charged with violating subsection (a), the magisterial district judge may admit the offender to the adjudication alternative as authorized in 42 Pa.C.S. § 1520 (relating to adjudication alternative program) or any other preadjudication disposition if the offender has not previously received a preadjudication disposition for violating subsection (a).
(2) The use of a preadjudication disposition shall be considered a first or subsequent offense, whichever is applicable, for the purpose of further adjudication under this section or under section 6310.4.
(d) Notification.–The police department making an arrest for a suspected violation of subsection (a) shall so notify the parents or guardian of the minor charged.