Trespassing with a firearm is a felony. Carry a video camera or a camera with you while you hunt. If you catch some one trespassing, take their picture and call the law.
Exactly. In New Hampshire if you are caught trespassing while hunting it will result in a revocation in hunting privileges.
General Hunting Laws
Loss of License: Anyone found guilty of violating any Fish and Game regulation will lose his or her hunting privileges for a minimum of one year.
*enter posted land without permission of the owner;
*litter on any public or private land;
*willfully tear down, obstruct or leave open any fence, gate or bar belonging to, or enclosing land of another person or remove or deface any posted sign or property;
I'd check your states regulations and call the law.