Me. Rev. Stat. tit. 15, § 3509

When a juvenile who has left the care of the juvenile's parent or parents, guardian or legal custodian in another state without the consent of the parent or parents, guardian or legal custodian, who has absconded from probation or parole in another state, who has escaped from a detention or correctional facility in another state or who is accused of an offense in another state is found by a law enforcement officer in the State, the juvenile must be referred immediately to a juvenile community corrections officer and must be processed according to the provisions of the Interstate Compact for Juveniles.