My first question is why are you filling out a 4473 for a repair? You only do that if someone else picks it up then the person who dropped it off.

I have been told by ATF that if someone drops a gun off for repair, return it to them. There is no system in place to check if they can legaly have a firearm for repairs. I am not law enforcement and have been told to stay out of law enforcement matters. The truth is you have no legal right not to return his gun to him. There is nothing in the regulations about not returning a firearm to the person who dropped it off if you find out they are a felon. A 4473 is for the transfer of a firearm not the return of a firearm. That is legaly his property and he can sue you for not returning it to him.

If you want to go by what the 4473 says 99% of the people, me included can not buy firearms. I don't know of anyone who has not used a controlled substance like Tylonal with Codine, percadan, percase(speeling is wrong I'm sure) etc., etc. that was perscribed to someone else or your doctor friend gives you one he has in his medicine cabinet. Or have you ever not finished a perscription and kept the rest for future use and let your wife or kids take one. That is distribution of a controlled substance. A while back I was working on a cops duty gun and we got talking while I was fixing his gun. We got onto the subject of pot and how it has changed from when we were growing up in the 60's and 70's. He and his partner freely addmitted to me that they have smoked pot in there younger years. Should I have refused to give his duty gun back to him? If someone is obviously impaired I will not return their firearm. I make them come back when they are sober.