As of September 30, 1996, it is illegal to possess a firearm after conviction of a misdemeanor crime of domestic violence. This prohibition applies to persons convicted of such misdemeanors at any time, even if the conviction occurred prior to the new law's effective date. A qualifying misdemeanor domestic violence crime must have as an element the use or attempted use of physical force or the threatened use of a deadly weapon. For example, a conviction for a misdemeanor violation of a protection order will not qualify, even if the violation was committed by a violent act, if the statute does not require the use or attempted use of physical force or the threatened use of a deadly weapon. The U. S. Attorney's Office can determine which misdemeanor convictions qualify.
In addition, the statute contains due process requirements regarding counsel and jury trials. Absent compliance with these due process requirements, the misdemeanor conviction will not qualify as a domestic violence conviction for purposes of Section 922(g)(9). Moreover, a person may be able to possess a firearm if the conviction has been expunged or set aside.
Basically, this means if you have a conviction you can't carry a firearm which means you can't work in a Law Enforcement capacity. You said "I was giving a small misdiminor" which leads me to believe you may actually have a conviction of some type of domestic violence crime.