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Try hiding a trail camera and catch them.
My guess is that would be a good way to get your trail camera either stolen or destroyed!
In most cases it wouldnt do you any good anyways,property left on public land is often considered abandoned after a short period of time.Odds of loosing a camera to boot are probably very good.
Put old POS dummy camera where they will be seen, and take or destroy, put another up in a tree about 10' off ground, pointing to dummy camera, it works!! You have all the evidence you need if you can identify them and where they live!!
Only complete douche bags leave trash on the ice like the guys on Canyon ferry that leave the piles of their perch carcasses and smashed beer cans in piles after they leave their ice houses