If someday I end up robbing a bank to get money to feed my child (unlikely scenario, but if), then I would expect the police to try to hunt me down and throw me in prison with other bank robbers.
It would be hypocrisy if I claimed such laws shouldn't apply to me.
You're right. I operating on the assumption that IF he turns out to have acquired them illegally, he's not going to turn himself in, along with the keys to his house, car and any other property he transported or consumed them in.
If he does, he's consistant.