search and seizure
n. examination of a person's premises (residence, business or vehicle) by law enforcement officers looking for evidence of the commission of a crime, and the taking (seizure and removal) of articles of evidence (such as controlled narcotics, a pistol, counterfeit bills, a blood-soaked blanket). The basic question is whether the search and seizure were "unreasonable" under the 4th Amendment to the Constitution (applied to the states under the 14th Amendment), which provides: "The right of people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated." Thus, searches and seizures must be under the authority of a search warrant or when the officer has solid facts that give him/her "probable cause" to believe there was evidence of a specific crime on the premises but no time to get a warrant. Evidence obtained in violation of the Constitution is not admissible in court, nor is evidence traced through such illegal evidence.