If you are stopped because law enforcement believes you to be driving under the influence of drugs or alcohol, it is important not to panic. Be polite and courteous, but share as little information as possible with the officer. Anything you say can be used against you, so it is always better to speak to an attorney before speaking to law enforcement. When stopped, remain in your vehicle, roll down the window, and do not act suspicious. Follow instructions, but do not agree to anything until you have spoken to an attorney.