So here is my situation. I hunt 35 acres that butts up against a huge lot of land (600 ac). The large lot is owned by a brickmaking company in my area. The brick company doesnt allow anyone to hunt this land. I was walking the edge of my land the other day and noticed a stand about 50 yards off of my land on the brick companies land. I have a stand that is right on the edge of my land that I am hoping is going to be one of my best stands. I am concerned that the illegal hunter my be seeing the same deer that i would from my stand. The stands are also to close together for my comfort. It just doesnt seem to safe to me. So here is my question(s):

Should i take down the illegal hunters stand down and just hold on to it?
or
Should i report it to the brick company?
or
Do you have any other suggestions?