The SCOTUS has limited the ability of the police to continue a traffic stop in order to conduct a search.
The Court reasoned:
Absent reasonable suspicion, police extension of a traffic stop in order to conduct a dog sniff violates the Constitution’s shield against unreasonable seizures.
A routine traffic stop is more like a brief stop under Terry v. Ohio than an arrest. Its tolerable duration is determined by the seizure’s “mission,” which is to address the traffic violation that warranted the stop and attend to related safety concerns. Authority for the seizure ends when tasks tied to the traffic infraction are—or reasonably should have been— completed. The Fourth Amendment may tolerate certain unrelated investigations that do not lengthen the roadside detention but a traffic stop becomes unlawful if it is prolonged beyond the time reasonably required to complete the mission of issuing a warning ticket.
Read the whole opinion below: