 Complete the following phrase:  Rodriguez v. United States, 575 U.S. 348 2015, was a United States Supreme Court case which analyzed whether police officers may extend the length of a traffic stop to conduct a search with a trained detection dog. In a 63 opinion, the Court held that officers may not extend the length of a traffic stop to conduct a dog sniff unrelated to the original purpose of the stop. However, the Court remanded the case to the United States Court of Appeals for the Eighth Circuit to determine whether the officers extension of the traffic stop was independently justified by reasonable suspicion. Some analysts have suggested that the Courts decision to limit police authority was influenced by 