Date: 4/6/09. Man, His wife, and mother-in-law were at the Matt Giraud homecoming event in Kalamazoo, MI. Man was open carrying (rest were carrying concealed). After being there for roughly 90 minutes, they decided they weren't interested and decided to leave. Upon leaving, the group passed by a KDPS officer, and greeted them cordially.
Roughly two minutes later, as they were walking back to their vehicle, a squad car rushed them, stopped at an angle on the street in front of them, and the officer came out, drew his firearm, aimed it at the man (but they were all standing within inches of each other, so really at the whole group), and detained the man who was openly carrying, informed the other two to stay back and not get involved.
The officer immediately detained, disarmed, and cuffed the man, directing him to the back of the squad car by using the man's loaded (and chambered) Glock .45 caliber pistol on his back and shoulder to direct him (barrel first).
The wife and mother-in-law were visibly upset, having had a firearm pointed at the man (and themselves), and were protesting, claiming that he had done nothing wrong. During this process, an unidentified man claimed to be an "undercover officer" was talking with the wife and mother-in-law, and during the event (and even after) refused to be identified (Afterward, none of the officers claimed to know who he was, even though the man claimed to know the officer-in-charge at the event, and the officer didn't deny it then).
During their interaction with said "undercover officer," it came up in conversation that they, too were carrying, only concealed. "Undercover officer" then got a uniformed officer ("Did you hear that? They're carrying too!"), and then forced each of them to disarm and provide CPL/ID, and the officers ran the serial numbers of the guns.
At the end of the day, no one was charged, and everyone went home armed.
Some two weeks later, an officer comes up to wife and Mother-in-law's home, and serves them with a citation: Violation
MCL 28.425f(3): Failure to immediately disclose when stopped.
The man who was openly carrying was never charged with a crime, because no crime was committed.