The court in Amsterdam has ruled in a fundamental decision that the use of a traffic control by police in order to catch possible criminals presents a détournement de pouvoir (abuse of right). The court heard a case in which a so-called dynamic traffic control discovered almost one kilogram of pot in a driver's car. It resulted in prosecution, but the court found that the police had been guilty of violating a fundamental principle of law. The discovery of pot was not accepted as evidence and the suspect was acquitted.