When a suspect is being pursued by police in a "hot pursuit" into the home of the suspect, what circumstances will police be able to enter without a warrant?

Such "hot pursuit," however, is but an illustration, not a definition of the kind of circumstances that justify a warrantless entry for the purpose of making an arrest or search. Dorman v. United States, supra, 140 U.S.App.D.C. at 319, 435 F.2d at 391. The actual commission of a crime within a dwelling may also be sufficient to permit an immediate entry. Police who witness an attempted homicide or other crime of violence being committed by a person in his home need not delay entry while first obtaining a warrant, since to do so would only serve to tolerate the commission of the crime itself.