“The individual also must certify they have transferred all firearms they own or that are in their custody to another person with a valid FOID card, according to the sheriff’s office.”
That doesn’t indicate that the individual doesn’t still own the firearms.
As a general matter, if one has custody of something someone else owns because that someone else can not have possession under the circumstances, by what right does one keep custody if circumstances change so that the owner can regain possession?
The father may have believed or known the son was nuts, but did he have a legal right to retain custody of the firearms once he or the son moved out of Illinois?
In a different situation, if the son was in the Navy and the father had custody of the son’s firearms because the son couldn’t possess them aboard ship, could the father legally retain custody of what the son owned upon the son’s discharge because the father believed the son to be unfit after his service?
Dad had better be able to prove that he drove over the Tennessee border to transfer the guns.
That will clear him of STATE charges.
The Feds, on the other hand - they doan need no steeking badges.
They have a bottomless checkbook.