Inside the jacket was a gun, luckily the discovery was made by an adult rather than a student at the school.
"School safety begins at our front door" is written on the front door of Cheyenne elementary school in Macomb.
According to the Macomb County Sheriff, a discovery made late at night on March 3 has ended with the assistant county prosecutor Steve Fox in some trouble with the law.
A jacket belonging to Steve Fox was found inside the school, in the zipped up pocket was a handgun.
We're told it was a janitor who ultimately found the gun and called police.
While it's legal if you have a concealed carry permit to open carry in a school, you cannot carry a concealed weapon unless you have specific permission to do so under state law.
Some argue the law about guns and school is too confusing. That argument was made earlier this month in Ann Arbor after police were called when a 22-year-old legally carried a gun openly on school grounds.
Rick Ector, owner of Rick's Firearm Academy of Detroit says, "it's very confusing for people who want to do the right thing."
Fox faces a 500 dollar fine and could have his concealed pistol permit suspended for six months after this discovery.
Fox 2's Charlie Langton says "if you make a mistake you have to face the consequences, he'll be ok."
We tried to Fox for comment on the situation but we were unable to get ahold of him.
However he did tell the Macomb Daily that he was embarrassed and assured them it would never happen again.