Which of the following statements about the search and seizure law is true?

The statement that search and seizure law requires probable cause for searches and seizures is indeed accurate. Under the Fourth Amendment of the U.S. Constitution, which is reflected in California law, law enforcement must have probable cause to obtain a warrant for most searches and seizures. Probable cause means that there is a reasonable basis for believing that a crime may have been committed or that evidence of a crime can be found in a specific location. This principle safeguards citizens' rights against arbitrary governmental intrusions and ensures that law enforcement acts within legal boundaries when conducting searches.

The other statements do not align with the established legal framework. Unlimited searches without a warrant violate the Fourth Amendment's protections against unreasonable searches. Search and seizure laws primarily govern law enforcement actions rather than private individuals, who are subject to different standards. Moreover, reasonable suspicion refers to a lower standard of belief than probable cause, generally applicable in contexts like stop-and-frisk scenarios, but not sufficient to justify a full search or seizure. Therefore, the requirement of probable cause distinguishes the legal norms governing search and seizure from other levels of suspicion.