I have "poached" on several occasions throughout the years. One time that I know of was on the old family ranch in NM. We had multiple depredation permits for elk. I was driving past a hay field and caught a group of cows grazing. I shot and killed several of them with the rifle I had with me at the time. That rifle was a .223 using 55 grain ball ammo. It is illegal to use anything smaller than a 6MM (.243) on big game in NM and it's illegal to use full metal jacket ammo for the taking of big game animals. FYI They are quite effective through the head or upper neck.
I shot a bull elk once across a canyon. He went straight down. I dropped down into the canyon to retrieve him and much to my dismay down in the bottom of the canyon was a fence and a no trespass sign! The elk was shot on public land and had slid down the hill and wound up on private land. The ONLY tiny, thin, strip of private land within hundreds of thousands of acres of public land BTW. I was completely unaware of it's existence. This was in the days long before GPS technology was widely available and back then it never occurred to me to have a map, only city boys get lost, right?

In any case the land owner was an absentee owner. I retrieved my elk and moved on out. But that could have had the potential to be a major pain in the legal buttocks under different circumstances.
I'm sure that with the vast amount of hunting I've done over the years that I have unwittingly broken some of the finer details of the local game laws. For instance;
If you are going coyote calling in NM as a resident or with your non resident friends and you call in a bobcat the non resident must have a trappers licensee to kill it and must get the pelt tagged before leaving the state...People call in and shoot bobcats all the time, no big deal right? Well it is in NM.
Who would have thunk it? And how many folks would NOT shoot a bobcat on a small game license if they did call in a bobcat? I've known several people who have done it and I didn't know it was a problem for a long time. You have got to read the fine print folks. The devil is in the details.