Wilson v. Arkansas

The Case: U.S. Supreme Court ruling on Fourth Amendment protections

Date: Decided on May 22, 1995

Significance: This Supreme Court decision held that police officers, when conducting searches, are normally expected to knock and announce their presence before entering private homes, except when special circumstances justify exceptions to this common-law requirement.

In 1992, Sharlene Wilson sold illegal drugs to undercover agents working for the Arkansas state police. Based on this information, police officers obtained warrants to arrest Wilson and search her home. When they arrived, the main door to the house was open and the screen door was unlocked. After entering the house without knocking, the officers notified her of the search warrant and arrest warrant. They placed her under arrest, and their search uncovered substantial amounts of illicit narcotics.

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At Wilson’s trial, her defense attorneys entered a motion to have the evidence collected in her home suppressed. They asserted that the search had been unconstitutional because the police had ignored the common-law obligation of knocking and announcing their presence and authority before entering a private home. The motion was denied, and Wilson was found guilty. After Arkansas’s highest court upheld the conviction, the U.S. Supreme Court agreed to review the case.

A unanimous Supreme Court held that the knock-and-announce principle is a significant part of an inquiry into whether a search-and-seizure passes the reasonableness standards of the Fourth Amendment. In writing the official opinion in the case, Justice Clarence Thomas referred to a long-standing endorsement of the knock-and-announce principle in the common law, combined with a wealth of founding-era commentaries, statutes, and cases supporting the principle. Based on this history, Thomas concluded that an unannounced entry into a home is unreasonable in most circumstances.

However, the Court’s opinion also acknowledged that the common-law principle has never been applied as an inflexible rule that requires announcement before entry in all situations. Law enforcement may be faced with exigent circumstances, including a credible threat of physical harm to the police or reasons to believe that physical evidence would probably be destroyed if advance notice were given. The Court therefore remanded the case back to the state courts and directed the judges to consider whether the police had a reasonable justification for neglecting to knock and announce their presence before entering Wilson’s home. If the police were unable to articulate a strong rationale, the conviction of Wilson would be rendered invalid, and in the event of another trial, prosecutors would not be able to introduce the seized narcotics as evidence. The Wilson ruling sent a firm message to law-enforcement officers not to ignore the principle of knock-and-announce.

Bibliography

Franklin, Paula. The Fourth Amendment. New York: Silver Burdett Press, 2001.

LaFave, Wayne R. Search and Seizure: A Treatise on the Fourth Amendment. 3d ed. St. Paul, Minn.: West Publishing, 1996.

O’Brien, David M. Constitutional Law and Politics. 6th ed. New York: W. W. Norton, 2005.

Wetterer, Charles M. The Fourth Amendment: Search and Seizure. Springfield, N.J.: Enslow, 1998.