Poaching is a felony? I'm not sure about that one either. I've got no problem with him being charged to the full extent of the law, but I'm not buying that poaching is a felony.
A little quick google revealed this about two men who killed a Boone and Crocket class deer the day before gun season started in Kentucky and tagged it as if it were killed on opening day.
Brown and Gilliam each paid fines and court costs of $409. In addition, Brown received a 30-day jail sentence that was probated for two years. He also forfeited his deer rifle, the mounted deer and was stripped of his hunting privileges for two years. Gilliam lost his hunting privileges for one year.
Needless to say, no mention of felony charges.
If the OP's soon to be father in law is being charged with a felony, there is more to the story.