The Bead Head Perpetrator is an awesome multi purpose nymph pattern that is very effective in both moving and stillwater.
The The Golden Stone Perpetrator cleans house on early season trout when swung in the rivers of Bristol Bay. The Cutts and Rainbows of Southeast, AK dig this pattern when fished in the lakes and ponds. And don't forget steelhead! They love a realistic buggy looking nymph especially in low clear water.
The Perpetrator is tied on a shank with a #6 trailing hook.