the best way is to catch tag numbers with a date and time...so get an IR only camera that is small, and can be hidden close to the incoming trail where you can get their tag. That's all you need.

fyrfyter43 : just to clarify; the guy in the picture is just some person that likes your jeep and left a note saying he was interested in buying it?  

He is not part of the other problems you are having- right? He doesn't have a backpack; like a thief would to snatch things left in the open.

He just looks like a person interested in buying your jeep - right?

Yep, just a guy interested in buying the Jeep.

I've been out of work on disability for several months now, and when that picture was taken I had just left for a doctor's appointment. Otherwise I would have heard him pull in the driveway. My parents picked me up, since I'm not allowed to drive with the medication I'm on. When I checked the camera a few days later, I wondered what that guy was doing, so I went outside to check and make sure nothing was out of place. I found the note on my windshield and called the guy. He confirmed that it was him in the picture when I described the car and clothing. I told him I wasn't interested in selling the Jeep, and he thanked me for calling him back.

The problems I've had have definitely been with local kids. A couple of the things that were done made it easy to know exactly who was behind it, but I don't want to say anything to the parents without something more substantial to prove it was their kids.