Subsequent offenses

1. Prior conviction; Class D crimes. A person who commits a Class D crime under this Title who has a prior conviction for a Class B, Class C or Class D crime under this Title commits a Class C crime. 2. Prior conviction; Class C crimes. A person who commits a Class C crime under this Title who has a prior conviction for a Class B, Class C or Class D crime under this Title commits a Class B crime. 3. Allegation of prior conviction when sentence enhanced. Title 17-A, section 9-A governs the use of prior convictions when determining a sentence under this section.