I haven't worked there since before the AGs opinion, so don't know what they are doing now. Previously, on all trespassing calls - at least where I worked - the complaintant was the landowner or his agent, and the landowner/agent signed the ticket as complaintant. That meets the standard for issuing a citation, believe it's "reasonable suspicion". If the case is contested in court, the complaintant must appear and articulate the facts of the complaint. The officer/sheriff serving the citation didn't have to prove anything, that burden of proof was on the complaintant, with the judge or jury determining the preponderance of evidence.
If I could actually orient that precisely with a GPS, there are a lot better options for accessing public land legally (i.e., 1/4 section strips across terrain), where I could know where I was at, and have little worry of competition from other public hunters. You can't depend on a fence or fence corner to be on the section boundary, they are rarely located that precisely. Unless there's a survey pin at the location in question, I don't know anyone who can actually locate that point in the field with sufficient precision to step across the corner. However, I don't keep up with the cutting edge of mapping software and GPS technology, maybe it's possible now.
I'm not siding with the landowners, or Wyoming's trespass law, or defending excluding the public from public land. I am questioning anyone's ability to actually do what we are discussing, in the field, hunting. If you can't demonstrably do it - then you're really looking for a plausible excuse if caught trespassing. I think you'd lose that case in most Wyoming courts, if you could not convince the judge/jury of your ability to do what you claimed to have done. Arguing the theoretical step over the corner wouldn't cut it, and the complaintant wouldn't have to prove that "your" point was not accurate. You'd have to be able to explain the technology you used, and how you used it to positively locate that point. You'd have to convince the judge of your ability to locate that point, or he'll most likely conclude you did not. Just my opinion.