Lots of poaching out there. A friend used to drive a trash truck in the Carbondale to Aspen area. He said that in the trailer parks there were deer and elk bones and hides all year long. I turned in many, and testified once.
I have found where hunters have dumped several ducks and geese not cleaned, I have watched hunters shoot across a fence onto KNOWN private land and drag a deer under the fence. I have found salt blocks under permanent tree stands on public land, with fresh carcasses nearby. I have encountered a guy packing out elk meat 3 days after the season ended (in warm weather), then found he and his buddies had killed two and wounded a third but only tagged one elk. I have watched through a spotting scope as a group of guys shot a couple dozen rounds from the road, at cow elk, on private property in the wrong unit, no cow tag, killing 2. Watched guys shoot a deer across the county road on private property that no one is allowed to hunt.
I lived way out, was out running one evening and heard a shot up ahead of me, get around the corner and there are 3 non english speaking females in a Ford Ranger shooting and killing a doe in July.
I would guess that the vast majority of poachers are never caught.
The way hunting regs are written, many people are committing crimes without knowing it.