I have a federal firearms license. I am also a retired police officer. I was a police officer for 27 years. The last 13 years I was a criminal investigator. In my department we were general investigators. We would handle anything that dropped on our desk. We tended to have specialties but they weren't our only case type. I handled everything from petty thefts to homicides. One of my specialties was dealing with people trying to purchase guns when they weren't supposed to.