What important legal concept was established in United States v. Robinson (1973)?

The important legal concept established in United States v. Robinson (1973) is that a lawful arrest permits a full search of the suspect's person. This case clarified that once a police officer makes a lawful arrest, they have the authority to conduct a thorough search of the individual being arrested, as well as the immediate surrounding area. This principle is rooted in the need for officer safety, the preservation of evidence, and the prevention of escape. The U.S. Supreme Court ruled that the search is justified and does not require separate probable cause, as the arrest itself provides the necessary legal grounds for conducting a full search.

This ruling helps to balance the need for effective law enforcement while also respecting the rights of individuals, establishing clear guidelines on the extent of searches that can be performed during an arrest. In contrast, other options provide misunderstandings or limit other legal interpretations regarding searches and warrants in general, but they do not reflect the specific finding of this landmark case.