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  2. United States v. Knotts - Wikipedia

    en.wikipedia.org/wiki/United_States_v._Knotts

    United States v. Knotts, 460 U.S. 276 (1983), was a United States Supreme Court case regarding the use of an electronic surveillance device. [1] The defendants argued that the use of this device was a Fourth Amendment violation.

  3. Maryland v. Buie - Wikipedia

    en.wikipedia.org/wiki/Maryland_v._Buie

    Maryland v. Buie, 494 U.S. 325 (1990), was a decision by the Supreme Court of the United States handed down in 1990. In the case, the Court held that the Fourth Amendment permits a properly limited protective sweep in conjunction with an in-home arrest when the searching officer possesses a reasonable belief based on specific and articulable facts that the area to be swept harbors an ...

  4. Smith v. Maryland - Wikipedia

    en.wikipedia.org/wiki/Smith_v._Maryland

    Smith v. Maryland, 442 U.S. 735 (1979), was a Supreme Court case holding that the installation and use of a pen register by the police to obtain information on a suspect's telephone calls was not a "search" within the meaning of the Fourth Amendment to the United States Constitution, and hence no search warrant was required.

  5. Police power (United States constitutional law) - Wikipedia

    en.wikipedia.org/wiki/Police_power_(United...

    The authority for use of police power under American Constitutional law has its roots in English and European common law traditions. [3] Even more fundamentally, use of police power draws on two Latin principles, sic utere tuo ut alienum non laedas ("use that which is yours so as not to injure others"), and salus populi suprema lex esto ("the welfare of the people shall be the supreme law ...

  6. Elkins v. United States - Wikipedia

    en.wikipedia.org/wiki/Elkins_v._United_States

    Elkins v. United States, 364 U.S. 206 (1960), was a US Supreme Court decision that held the "silver platter doctrine", which allowed federal prosecutors to use evidence illegally gathered by state police, to be a violation of the Fourth Amendment to the United States Constitution.

  7. Reasonable suspicion - Wikipedia

    en.wikipedia.org/wiki/Reasonable_suspicion

    Reasonable suspicion is a legal standard of proof that in United States law is less than probable cause, the legal standard for arrests and warrants, but more than an "inchoate and unparticularized suspicion or 'hunch ' "; [1] it must be based on "specific and articulable facts", "taken together with rational inferences from those facts", [2] and the suspicion must be associated with the ...

  8. Massiah v. United States - Wikipedia

    en.wikipedia.org/wiki/Massiah_v._United_States

    Massiah v. United States, 377 U.S. 201 (1964), was a case in which the Supreme Court of the United States held that the Sixth Amendment to the United States Constitution prohibits the government from eliciting statements from the defendant about themselves after the point that the Sixth Amendment right to counsel attaches.

  9. Omnibus Crime Control and Safe Streets Act of 1968 - Wikipedia

    en.wikipedia.org/wiki/Omnibus_Crime_Control_and...

    The Omnibus Crime Control and Safe Streets Act of 1968 (Pub. L. 90–351, 82 Stat. 197, enacted June 19, 1968, codified at 34 U.S.C. § 10101 et seq.) was legislation passed by the Congress of the United States and signed into law by President Lyndon B. Johnson that established the Law Enforcement Assistance Administration (LEAA). [1]