What to Do? Possible Rocksprings Poacher

I just got back from my ranch in Rocksprings. We did get a good rain Saturday morning early. It was a good trip except for one concern. We saw a herd of maybe 8-12 Axis doe and buck midday Friday and Saturday while driving the private road that fronts my three tracts. What concerns me is that on Friday and Sunday a red Ford pickup truck with at least two people inside drove back and forth past two of my tracts for at least 5-10 minutes where we sighted the Axis. I believe they also must have seen the Axis, one of which is a very nice, big buck with 30"+ length horns. I was never able to confront them since I was either working on my water tank or sitting in a blind. In the recent past I have turned in a poacher that received 8 charges and have found the hides of two small whitetail deer just off the road and a small Axis deer hide near one of my feeders a couple of hundred feet off of the same road. I don't think I'm being paranoid but feel like some of my neighbors may want to shoot an Axis and don't care if it is on my property and not theirs! I wish I could have at least gotten their license plate number and I could have called the local Game Warden and had a retired Sheriff friend run it and given me the owner's name. Now I feel that I need to be at my ranch as much as possible to keep an eye on the place! Oh, we did figure out why the deer were staying in the area just off the road, it is high ground with good cover and almost hid two young Axis fawn that went almost undetected until we carefully walked the area looking for evidence! What should or can I do before I find Axis remains left by a poacher? Thanks for letting me vent!!!