What does Mincey v. Arizona illustrate about warrantless searches in homicide investigations?

• A. Longer searches are always allowed
• B. Searches must be supported by a warrant or strong exceptions
• C. Warrantless searches cannot be challenged
• D. The duration is irrelevant

Answer: (B)

Mincey v. Arizona shows that the Fourth Amendment requires warrant-supported searches or a clear, legally recognized exception to the warrant rule even in homicide investigations. The Court ruled that a prolonged, general, warrantless search for evidence inside a crime scene—without probable cause and outside any valid exception—violates constitutional protections. This prevents police from turning a murder inquiry into a broad fishing expedition and reinforces that evidence obtained during such warrantless, non-exigent searches is typically inadmissible. So, searches in these situations must be authorized by a warrant or by a strong, recognized exception to the warrant requirement.