On nighttime traffic stops, light up the offender’s vehicle and don’t be in a rush to get out of your unit. Sit back and watch the activities for a short time. You will see driver and passenger movement inside. You may see what appears to be the hiding of contraband and such. With lights shining on them, the occupants won’t be able to clearly observe your activities. Get out of your unit, walk around the back of it and approach the offender’s vehicle on the passenger side. You will be surprised at what you may see. Observe the subject’s actions before making contact. I have recovered many open containers and other items by using this tactic.