“Double-edged, nonfolding stabbing instrument” defined.

Mich. Comp. Laws § 750.222a, under THE MICHIGAN PENAL CODE.

Mich. Comp. Laws § 750.222a

Sec. 222a. (1) As used in this chapter, "doubled-edged, nonfolding stabbing instrument" does not include a knife, tool, implement, arrowhead, or artifact manufactured from stone by means of conchoidal fracturing. (2) Subsection (1) does not apply to an item being transported in a vehicle, unless the item is in a container and inaccessible to the driver.