For some clarity on what the law sez:
§134-7 Ownership or possession prohibited, when; penalty.
(a) No person who is a fugitive from justice or is a person prohibited from possessing firearms or ammunition under federal law shall own, possess, or control any firearm or ammunition therefor.
(b) No person who is under indictment for, or has waived indictment for, or has been bound over to the circuit court for, or has been convicted in this State or elsewhere of having committed a felony, or any crime of violence, or an illegal sale of any drug shall own, possess, or control any firearm or ammunition therefor.
(c) No person who:
(1) Is or has been under treatment or counseling for addiction to, abuse of, or dependence upon any dangerous, harmful, or detrimental drug, intoxicating compound as defined in section 712-1240, or intoxicating liquor;
(2) Has been acquitted of a crime on the grounds of mental disease, disorder, or defect pursuant to section 704-411;
(3) Is or has been diagnosed as having a significant behavioral, emotional, or mental disorders as defined by the most current diagnostic manual of the American Psychiatric Association or for treatment for organic brain syndromes; shall own, possess, or control any firearm or ammunition therefor, unless the person has been medically documented to be no longer adversely affected by the addiction, abuse, dependence, mental disease, disorder, or defect.