Compiled Laws, Chapter 750. Michigan Penal Code § 750.145b

Sec. 145b. (1) A person convicted of violating section 145a 1 who has 1 or more prior convictions is guilty of a felony punishable by imprisonment for not more than 10 years or a fine of not more than $10,000.00, or both.

(2) If the prosecuting attorney intends to seek an enhanced sentence based upon the defendant having 1 or more prior convictions, the prosecuting attorney shall include on the complaint and information a statement listing the prior conviction or convictions. The existence of the defendant's prior conviction or convictions shall be determined by the court, without a jury, at sentencing or at a separate hearing for that purpose before sentencing. The existence of a prior conviction may be established by any evidence relevant for that purpose, including, but not limited to, 1 or more of the following:

(3) As used in this section, “prior conviction” means a violation of section 145a or a violation of a law of another state substantially corresponding to section 145a.