DELAWARE v. PROUSE 440 U.S. 648 (1979)
Police cant
do stop checks of car for driver's license and registration unless
reasonable suspicion
A
patrolman in a police cruiser stopped an automobile occupied by respondent and
seized marihuana in plain view on the car floor. Respondent was subsequently
indicted for illegal possession of a controlled substance. At a hearing on
respondent's motion to suppress the marihuana, the patrolman testified that,
prior to stopping the vehicle, he had observed neither traffic or equipment
violations nor any suspicious activity, and that he made the stop only in order
to check the driver's license and the car's registration. The patrolman was not
acting pursuant to any standards, guidelines, or procedures pertaining to document
spot checks, promulgated by either his department or the State Attorney
General. The trial court granted the motion to suppress, finding the stop and
detention to have been wholly capricious, and therefore violative of the Fourth
Amendment. The Delaware Supreme Court affirmed.
Held:
1.
This Court has jurisdiction in this case even though the Delaware Supreme Court
held that the stop at issue not only violated the Federal Constitution but also
was impermissible under the Delaware Constitution. That court's opinion shows
that, even if the State Constitution would have provided an adequate basis for
the judgment below, the court did not intend to rest its decision independently
on the State Constitution, its holding instead depending upon its view of the
reach of the Fourth and Fourteenth Amendments.
2.
Except where there is at least articulable and reasonable suspicion that a
motorist is unlicensed or that an automobile is not registered, or that either
the vehicle or an occupant is otherwise subject to seizure for violation of
law, stopping an automobile and detaining the driver in order to check his
driver's license and the registration of the automobile are unreasonable under
the Fourth Amendment.
(a)
Stopping an automobile and detaining its occupants constitute a
"seizure" within the meaning of the Fourth and Fourteenth Amendments,
even though the purpose of the stop is limited and the resulting detention
quite brief. The permissibility of a particular law enforcement practice is
judged by balancing its intrusion on the individual's Fourth Amendment
interests against its promotion of legitimate governmental interests. Pp.
653-655.
(b)
The State's interest in discretionary spot checks as a means of ensuring the
safety of its roadways does not outweigh the resulting intrusion on the privacy
and security of the persons detained. Given the physical and psychological
intrusion visited upon the occupants of a vehicle by a random stop to check
documents, cf. United States v. Brignoni-Ponce, 422 U. 3. 873;
United States v. Martinez-Fuerte, 428 U.S. 543 , the marginal contribution to roadway safety
possibly resulting from a system of spot checks cannot justify subjecting every
occupant of every vehicle on the roads to a seizure at the unbridled discretion
of law enforcement officials. Pp. 655-661.
(c) An individual operating or traveling in an automobile does not
lose all reasonable expectation of privacy simply because the automobile and
its use are subject to government regulation. People are not shorn of all
Fourth Amendment protection when they step from their homes onto the public
sidewalk; nor are they shorn of those interests when they step from the
sidewalks into their automobiles. Pp. 662-663.
(d) The
holding in this case does not preclude Delaware or other States from developing
methods for spot checks that involve less intrusion or that do not involve the
unconstrained exercise of discretion. Questioning of all oncoming traffic at
roadblock-type stops is one possible alternative.