When you ask someone for their license, registration, and insurance documents during a traffic stop, do you take them out of the driver’s hand immediately after they’re presented to you? If so, you might be robbing yourself of a valuable behavioral observation opportunity.
Instead, consider waiting a few extra seconds, particularly if you think you might be dealing with someone hinky. As you know, a higher than usual level of nervousness can be a reliable indicator of possible problems. By waiting a little longer to grab the license or other paperwork you’re giving yourself an opportunity to watch for extreme shaking. One interdiction officer reported dealing with a driver who began shaking so badly after the officer hesitated before taking his license that he could barely keep it from falling out of his hand.
Sure enough, the guy turned out to be a mule.