Exclusionary Rule

Definition of Exclusionary Rule

This rule commands that where evidence has been obtained in violation of the privileges guaranteed by the U.S. Constitution, the evidence must be excluded at the trial. Evidence which is obtained by an unreasonable search and seizure is excluded from evidence under the Fourth Amendment, U.S. Constitution and this rule is applicable to the States. Mapp v. Ohio, 367 U.S. 643, 81 S.Ct. 1684, 6 L.Ed.2d 1081. See also Counsel, right to; Illegally obtained evidence; Independent source rule. Miranda Rule; Motion to suppress; Suppression of evidence; Suppression hearing.

That's the definition of Exclusionary Rule in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.