PAYTON v. NEW YORK, 445 U.S. 573, 100 S. Ct. 1371, 63 L. Ed. 2d 639
   
   Held : The Fourth Amendment, made applicable to the States by the
   Fourteenth Amendment, prohibits the police from making a warrantless and
   nonconsensual entry into a suspect's home in order to make a routine felony arrest. Pp. 583-603.
 (a) The physical entry of the home is the chief evil against which the
   wording of the Fourth Amendment is directed. To be arrested in the home
   involves not only the invasion attendant to all arrests, but also an
   invasion of the sanctity of the home, which is too substantial an invasion
   to allow without a warrant, in the absence of exigent circumstances, even
   when it is accomplished under statutory authority and when probable cause
   is present. In terms that apply equally to seizures of property and to
   seizures of persons, the Fourth Amendment has drawn a firm line at the
   entrance to the house. Absent exigent circumstances, that threshold may not
   reasonably be crossed without a warrant. Pp. 583-590.
   
   (b) The reasons for upholding warrantless arrests in a public place, cf.
   United States v. Watson, 423 U.S. 411, do not apply to warrantless
   invasions of the privacy of the home. The common-law rule on warrantless
   home arrests was not as clear as the rule on arrests in public places; the
   weight of authority as it appeared to the Framers of the Fourth Amendment
   was to the effect that a warrant was required for a home arrest, or at the
   minimum that there were substantial risks in proceeding without one.
   Although a majority of the States that have taken a position on the
   question permit warrantless home arrest, even in the absence of exigent
   circumstances, there is an obvious declining trend, and there is by no
   means the kind of virtual unanimity on this question that was present in
   United States v. Watson, supra, with regard to warrantless public arrests.
   And, unlike the situation in Watson, no federal statutes have been cited to
   indicate any congressional determination that warrantl ess entries into the
   home are "reasonable." Pp. 590-601.
   
   (c) For Fourth Amendment purposes, an arrest warrant founded on probable
   cause implicitly carries with it the limited authority to enter a dwelling
   in which the suspect lives when there is reason to believe the suspect is
   within. Pp. 602-603.