Notwithstanding section 609.68, a person may place bait to take bear and must display a tag at each site where bait is placed and register the sites. The commissioner shall prescribe the method of tagging and registering the sites. To attract bear a person may not use a bait with:

1. (1) a carcass from a mammal, if the carcass contains more than 25 percent of the intact carcass;
2. (2) meat from mammals, if the meat contains bones;
3. (3) bones of mammals;
4. (4) solid waste containing bottles, cans, plastic, paper, or metal;
5. (5) materials that are not readily biodegradable; or
6. (6) any part of a swine, except cured pork.