What principle was established in Florida v. Royer concerning Terry stops?

In Florida v. Royer, the court clarified the limitations of police authority during Terry stops, which are brief investigative detentions based on reasonable suspicion. The ruling established that while officers have the authority to stop and question individuals if they suspect criminal activity, they are restricted in how they can interact with the suspect thereafter.

Specifically, the principle from this case emphasizes that police cannot move a suspect without a valid justification during a Terry stop. This means that once a suspect is stopped, officers must have reasonable suspicion to extend the stop or relocate the suspect, as moving them without such justification could infringe on their Fourth Amendment rights against unreasonable searches and seizures.

This principle safeguards individual liberties during police encounters and upholds constitutional protections, ensuring that law enforcement actions are justified and regulated.