What is the test for a search and seizure under the Fourth Amendment?

and seizure in violation of the Fourth Amendment. Second, he asserted that his possession of the bullets was not admissible under factor (b) as "criminal activity . . . involv[ing] the use or attempted use of force or violence." After holding an evidentiary hearing (see People v. Phillips (1985) 41 Cal.3d 29, 72-73, fn. 25), the trial court denied the motion, finding that the search and seizure were constitutional, and that the evidence was admissible under factor (b).