Summary

Byron White Coolidge v. New Hampshire — Dissent

If the police in fact possess probable cause to believe that weapons, contraband, or evidence of crime is in plain view on the premises, it will be far safer to obtain a search warrant than to take a chance that in making an arrest they will come into plain view of the object they are seeking. It is only when they lack probable cause for a search when, that is, discovery of objects in plain view from a lawful vantage point is inadvertent-that entry to make an arrest might, as a practical matter, assist the police in discovering an object for which they could not have obtained a warrant.
Source: Wikisource

Byron White Coolidge v. New Hampshire — Dissent

Although I am not sure, it would seem that, when police discover a parked car that they have probable cause to search, they may not immediately search but must seek a warrant. But if before the warrant arrives, the car is put in motion by its owner or others, it may be stopped and searched on the spot or elsewhere. In the case before us, Coolidge's car, parked at his house, could not be searched without a valid warrant, although if Coolidge had been arrested as he drove away from his home, immediate seizure and subsequent search of the car would have been reasonable under the Fourth Amendment.
Source: Wikisource

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