Michigan Compiled Laws, Chapter 780. Criminal Procedure § 780.621b

Sec. 1b. (1) For purposes of a petition to set aside a conviction under section 1 or 1e,  1 more than 1 felony offense or more than 1 misdemeanor offense must be treated as a single felony or misdemeanor conviction if the felony or misdemeanor convictions were contemporaneous such that all of the felony or misdemeanor offenses occurred within 24 hours and arose from the same transaction, provided that none of those felony or misdemeanor offenses constitute any of the following:

(2) As used in this section, “dangerous weapon” means that term as defined in section 110a of the Michigan penal code, 1931 PA 328, MCL 750.110a.