Mapp vs. Ohio


 * Overturned a conviction for possessing obscene materials
 * Effectively nationalized the 4th Amendment
 * The holding established that the exclusionary rule applied to the states via the 14th Amendment
 * Harlan, Frankfurter, and Whittaker dissented from Clark's majority opinion
 * This opinion was instigated after local police attempted to follow up a tip that the defendent was housing a bombing suspect
 * Overruled by a key distinction set by Frankfurter in Wolf vs. Colorado
 * Expanded upon the ruling in Weeks vs. US by applying a doctrine established in Silverthorne Lumber vs. US