i like to use a Victor Rat trap, note your local regulations, its legal to use, as long as its enclosed, so all i do is cut a hole in an old anti-freeze container big enough for the trap and a weasle, slap on a pice of meat (beaver works best) mabe some lure, place the trap inside, when setting the container up, cover it with sticks and brush, kinda camoflauge it (weasles will find it with their noses) i have even caught martin in it!!

ScottFisher