What is the test for judicial review of search and seizure in the context of the Fourth Amendment?

Although it is difficult for this court to place itself in the role of police officers who are required to make decisions and take action without the benefit of quiet reflection, the Fourth Amendment requires judicial intervention when police activity compromises the right of the people to be secure from unreasonable searches and seizures. Terry v. Ohio condemns "judicial opinion(s) can comprehend the protean variety of the street encounter." 392 U.S. 1, 15, 88 S.Ct. 1868, 1876, 20 L.Ed.2d 889 (1967). Accordingly, search and seizure issues are to be decided on the facts of the particular case. Id. at 15, 30, 88 S.Ct. 1868.