Here is what I understand: BC will allow limited and restricted dredging in specific bedrock canyons, with many rules. The permitting is intense. For those that dredge without the necessary permits, there are eyes in the sky and it is fairly easy for a fellow in a plane or a drone to spot. You will be having a bad day if caught as they will make an example out of you. Years ago, I picked up a claim that I thought would be perfect to dredge, as I had heard they were considering allowing it. I let the claim slide when I saw the restrictions.