My question involves criminal law for the state of: Michigan

I have property with an attractive nuisance, water where people like to fish. Fishing in that water is legal by wading. Stepping on the dry ground is trespassing. The property is fenced and posted. The gentle approach of asking people to leave, which is effective, has become less practical because the trespassers, en mass, are complaining of 'harassment' if we interact with them. Local law enforcement is sympathetic to the trespassers.

Calling police to the scene is not effective because 99% of the time they simply never appear. (I agree they have more important things to do.) So I intend to document trespassers and their vehicles with video and photos then match the photos with drivers license photos based on vehicle ownership. This would need law enforcement cooperation.

My reading of the Michigan trespass law is I'm not required to ask people to leave before making a trespass complaint if the property is conspicuously fenced or posted. It also appears to provide for reasonable attorney fees from the trespasser to the land owner which might means an attorney can go forward with the evidence at no cost to me. This would also create an efficient work flow. Is there any way local law enforcement could thwart this approach?

Thanks in advance for any assistance.

Michigan recreational trespass law http://www.animallaw.info/statutes/s...3101-73301.htm