Section 750.222a - "Double-edged, nonfolding stabbing instrument" defined(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.Add. 2000, Act 343, Imd. Eff. 12/27/2000.