How did the Supreme Court rule in Davis v. United States about search incident to arrest?

In Davis v. United States, the Supreme Court addressed the issue of searches incident to arrest, clarifying the legal standards surrounding such searches. The ruling upheld the principle that the legality of a search incident to arrest is determined by the law that was in effect at the time of the search, meaning that it can be based on prior legal precedents that may later be overturned. This case emphasized the importance of good faith reliance on existing law at the time a search is conducted, which is critical in determining the admissibility of evidence obtained during such searches.

The other options do not accurately reflect the Supreme Court's ruling in this case. The Court did not mandate warrants for all searches, nor did it impose a ban on searches without probable cause or set a specific time limit for searches post-arrest. Instead, the decision focused on the understanding that law enforcement officers can rely on the legal standards in place at the time of the search, even if those standards might be subject to change in the future. This understanding helps maintain the balance between law enforcement needs and the protection of individual rights.