The U.S. Supreme Court has recently ruled that illegally obtained statements made by a defendant may be used by the prosecution to impeach the defendant, but not to impeach other witnesses. A defendant is subjected to double jeopardy if, after being acquitted of robbing one of several individuals gathered together for a poker game, he is tried again for the robbery of still another of the poker players. On the other hand, a witness who identified in court a defendant accused and acquitted of a crime may legally offer the identification testimony at another trial of the defendant for another crime. Defendants acquitted of criminal charges may be brought to court in a civil action dealing with the same matter and not be subject to double jeopardy. The law of unreasonable searches is discussed, with emphasis on pretext searches.