Possession in criminal
law can be actual or constructive. It's not necessary for your wife to be found with the weapon in hand for her to be charged as a felon in possession of a firearm. It would be sufficient if she knew the gun
was in the house and would be capable of taking custody and control over it.
In MIssouri, a felon in possession of a firearm faces a class C felony, which carries with it a maximum of 7 years of incarceration. This places her at great risk. She is not to be anywhere she knows that guns are.
Missouri does have one exception, however. It allows felons to posess an antique weapon. Consider keeping your guns out of your house somewhere unknown and locked away from your wife and defending your home with a black powder gun. (See statute below).
Possession of firearm unlawful for certain persons--penalty--exception.
571.070. 1. A person commits the crime of unlawful possession of a firearm if such person knowingly has any firearm in his or her possession and:
(1) Such person has been convicted of a felony under the laws of this state, or of a crime under the laws of any state or of the United States which, if committed within this state, would be a felony; or
(2) Such person is a fugitive from justice
, is habitually in an intoxicated or drugged condition, or is currently adjudged mentally incompetent.
2. Unlawful possession of a firearm is a class C felony.
3. The provisions of subdivision (1) of subsection 1 of this section shall not apply to the possession of an antique firearm.