From MN DNR
First of all, we can’t walk into your house and search your freezers like most people think. We would need consent from the homeowner or have a search warrant (“homeowner”, that also means occupant, lessee, etc.). Where our search authority comes into play is while a person is hunting or fishing. The best way to explain this is to give you an example – if you are out on the ice fishing and I observe you fishing. I also observe you catching fish but never throwing them back into the water. When I talk to you on the ice, you say you don’t have any fish in possession. This is where our authority comes into play – I observed you catching fish and not throwing them back – I have the authority to check all containers that could potentially hide those fish (coolers, containers, and even vehicles). Our authority would stop at the ice house which is treated like your residence when it comes to search authority. We typically just get a search warrant if we feel the violation is significant.