¶ … Terry v Ohio (Supreme Court, 1968) -- Found that the 4th Amendment prohibition on unreasonable search and seizure is not violated when an officer of the law stops a suspect on the street and frisks them with probably cause to arrest if there is reasonable suspicion that the person has committed a crime, is about to commit a crime, or is in the process of committing a crime. Subsequent rulings using Terry allow for a vehicle to be constitutionally searched if there is reasonable suspicion and a 2004 ruling that certain state laws requiring suspects to identify themselves were indeed constitutional. Siborn v New York (Supreme Court, 1968) -- 8 to 1 decision of the Warren Court stating that although states may grant officers of the law latitude in making arrests, all search and seizures must be subject to constitutional limitations. There must be verifiable probably cause -- not simply the thought process of an officer, or other non-verifiable means.

Peters v New York -- Heard in conjunction with a related case, Court said it was lawful to stop and frisk if officers observed suspicious behavior and a subsequent search reveled incriminating burglary tools.

Georgia v Randolf (Supreme Court, 2006) -- Court holds that police...

Scholars say this case is within the bounds of the battle between the originalists and living constitution philosophies of modern jurisprudence.
Arizona v Gant (Supreme Court, 2009) -- Court holds that the Fourth Amendment requires officers of the law to demonstrate and actual, reasonable and continuing threat to their personal safety or preserve the relevant evidence in order to justify the search of a vehicle without a warrant. This proof should be verifiable, preferably with witnesses or other tangible forms of evidence.

Oliver v United States (Supreme Court, 1984) -- Decision based on the open fields doctrine which limits the use of the Fourth Amendment. Essentially, this means that the protections under the Fourth Amendment do not hold for fields or growing areas around the home as if it were a home. Searches, therefore, can be made on open fields without violating the "knock and announce rule."

United State v Dunn (Supreme Court, 1987) -- Another open fields decision, limiting the use of the Fourth Amendment. In this case, the Court was asked to rule whether the area between the barn and the house was within the "curtilage" or protected area, of…