Jurisdiction.

(a) Proceedings relating to a minor under 18 years of age residing or found in the state are governed by this chapter, except as otherwise provided in this chapter, when the minor is alleged to be or may be determined by a court to be a delinquent minor as a result of violating a criminal law of the state or a municipality of the state.

(b) Except as otherwise provided in this chapter, proceedings relating to a person who is 18 years of age or over are governed by this chapter if the person is alleged to have committed a violation of the criminal law of the state or a municipality of the state, the violation occurred when the person was under 18 years of age, and the period of limitation under AS 12.10 has not expired.

(c) The provisions of this chapter apply to the detention and care of a person who is alleged to have committed a violation of a criminal law of the state or local government, subject to the provisions of AS 47.12.030 (a), 47.12.100, and 47.12.105.