unreasonable search and seizure
n. search of an individual or his/her premises (including an automobile) and/or seizure of evidence found in such a search by a law enforcement officer without a search warrant and without "probable cause" to believe evidence of a crime is present. Such a search and/or seizure is unconstitutional under the 4th Amendment (applied to the states by the 14th Amendment), and evidence obtained thereby may not be introduced in court.