We are a BC employer. We have a crane truck driver who contacted a power line with his crane truck. Luckily everyone is safe and no one was injured but it could have been a lot worse. The employee was not following proper safety procedure at the time of the incident. WorkSafe is involved. Our mechanic went to the site to inspect the vehicle before allowing it to be driven. When he went inside the truck he said it smelt strongly of marijuana and then when he looked down he saw in the drivers personal bag inside our work truck that had a box with what looked like marijuana in it. He reported this to us the next day. What are we able to do in this situation?