Use of Police Dogs at Traffic Stops

During traffic stops, police sometimes use K-9 dogs to sniff for drugs or other illegal substances. Two key Supreme Court cases have evaluated how far police may go in their use of dogs at roadside stops. In the first case, Illinois v. Caballes, 543 U.S. 405 (2005), the court considered whether using a drug dog at the scene of a roadside stop was an unreasonable search. The drug dog alerted at the scene, leading to the defendant’s arrest for marijuana trafficking. While the Illinois Supreme Court said that the search was unreasonable, the Supreme Court disagreed, determining that police did not...