In the case of Florida v. Casal et al., 1982, the U.S Supreme Court was asked to consider whether a state law that allowed for warrantless inspections of automobile junkyards and repair shops violated the Fourth Amendment's protection against unreasonable searches and seizures. The defendants, owners of an auto parts business in Miami-Dade County, were charged with violating a Florida statute by failing to maintain proper records regarding certain vehicle parts found on their premises during such an inspection. They argued that this constituted an unconstitutional search under both federal and state constitutions. The trial court agreed with them but was overruled by the District Court of Appeal which held that these types of businesses have a reduced expectation of privacy due to regulation aimed at curbing thefts from motor vehicles - thus making warrantless inspections reasonable. However, upon reaching the U.S Supreme Court it reversed this decision stating that even heavily regulated businesses retain protections against unreasonable searches under Fourth Amendment rights unless there is substantial government interest justifying use without warrants or if warrantless inspections are necessary for furthering regulatory scheme.

The dissenting opinion in the case of Florida v. Casal et al., 1982, argued that the majority's decision to uphold a warrantless search and seizure was incorrect. The dissent emphasized that Fourth Amendment protections against unreasonable searches and seizures should not be compromised based on an officer's subjective belief about potential danger or destruction of evidence. They contended that such exceptions would erode constitutional safeguards, leading to arbitrary invasions of privacy by law enforcement officers acting on mere suspicion rather than concrete evidence or probable cause as required by law. Furthermore, they disagreed with the majority’s view regarding exigent circumstances justifying immediate action without a warrant; instead arguing for strict adherence to established legal procedures which mandate obtaining warrants except under truly exceptional conditions.