Eight minutes. That's how much time police officers in the United States have been granted under the U.S. Constitution to extend a routine traffic stop so that a local K-9 unit can come with a drug-sniffing dog and search a vehicle, without any reasonable suspicion there are any drugs inside. In other words, an officer can legally require a
SCOTUS Rules Unreasonably Prolonged K-9 Searches Consitute “Illegal Detention”
According to a 2005 decision by the Supreme Court, a drug-sniffing dog “can be used at any traffic stop, whether or not there is suspicion of a controlled substance being transported.”