What Doesn’t Work: Covering your car in tinfoil so it can’t be seen by police radar. This works about as well as wearing a tinfoil helmet so aliens can’t read your mind.
What Works: Don’t take the fall for other people’s drugs. In Utah, if you are a passenger in a vehicle where drugs are found, you can be arrested and found guilty of “constructive possession” even if the drugs weren’t yours. So to avoid being charged with crimes you’ve never heard of, remember to ask for a defense attorney.