Titled: Gun law had little effect on crime

Police say there's little evidence gun use is up in crimes or that permit holders have prevented violence.
 
Opponents warned of vigilantes run amok, more accidental shootings and road rage escalating to gunfire.

Backers of Michigan's expanded concealed-weapons law talked of thwarted attacks by thugs, reduced crime and personal safety.

Three years of experience in Jackson County and statewide indicate the biggest impact of the July 2001 shall-issue law is peace of mind for some 110,000 people packing heat.

See I told ya. The article claims that there was no positive effect on crime either. However, if you check out the stats you will see that there has been a pretty steady drop in the violent crime rate as CPLs have been widely available in Michigan. I am not saying there is a definite correlation but the numbers are available. You can judge for yourself.