18 U.S.C. 921

According to Title 18 U.S.C. 921, if you are not convicted of crime (RO or DV) you cannot be denied firearms license under federal statute, which will trump state law, esp since SCOTUS determined 2nd amendment gurarntees right to bear arms (DC v HELLER in 2008). Also if you had license and it was temporarily taken, you were entitled to counsel and jury trial or required to waive such right.

 

READ Section 33 of the above statute


http://www.law.cornell.edu/uscode/18/921.html