what are the limitations?
UNANSWERABLE
what is the fourth amendment to the united states constitution? It is a part of the Bill of Rights. It prohibits unreasonable searches and seizures. when was it introduced? 1914 do you know by whom? UNANSWERABLE are there exceptions? Yes,  In "United States v. Martinez-Fuerte" (1976), the Supreme Court allowed discretionless immigration checkpoints. In "Michigan Dept. of State Police v. Sitz" (1990), the Supreme Court allowed discretionless sobriety checkpoints. In "Illinois v. Lidster" (2004), the Supreme Court allowed focused informational checkpoints. does it include cars? No,  The Supreme Court has held that individuals in automobiles have a reduced expectation of privacy, because (1) vehicles generally do not serve as residences or repositories of personal effects
wiki:19623252
Fourth Amendment to the United States Constitution [SEP] Limitations
Since 1974, the Supreme Court has repeatedly limited the exclusionary rule. In "United States v. Calandra" (1974), the Court ruled that grand juries may use illegally obtained evidence when questioning witnesses, because "the damage to that institution from the unprecedented extension of the exclusionary rule outweighs the benefit of any possible incremental deterrent effect." Explaining the purpose of the rule, the Court said the rule "is a judicially created remedy designed to safeguard Fourth Amendment rights generally through its deterrent effect, rather than a personal constitutional right of the party aggrieved". Several cases in 1984 further restricted the exclusionary rule: In "Arizona v.