DELAWARE v. PROUSE

382 A. 2d 1359, affirmed.

MR. JUSTICE WHITE delivered the opinion of the Court.

The question is whether it is an unreasonable seizure under the Fourth and Fourteenth Amendments to stop an automobile, being driven on a public highway, for the purpose of checking the driving license of the operator and the registration of the car, where there is neither probable cause to believe nor reasonable suspicion that the car is being driven contrary to the laws governing the operation of motor vehicles or that either the car or any of its occupants is subject to seizure or detention in connection with the violation of any other applicable law.

At 7:20 p. m. on November 30, 1976, a New Castle County, Del., patrolman in a police cruiser stopped the automobile occupied by respondent. The patrolman smelled marihuana smoke as he was walking toward the stopped vehicle, and he 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 seized as a result of the stop, 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 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. Characterizing the stop as "routine," the patrolman explained, "I saw the car in the area and wasn't answering any complaints, so I decided to pull them off." 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…We granted certiorari to resolve the conflict between this decision, which is in accord with decisions in five other jurisdictions, and the contrary determination in six jurisdictions that the Fourth Amendment does not prohibit the kind of automobile stop that occurred here.

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The Fourth and Fourteenth Amendments are implicated in this case because stopping an automobile and detaining its occupants constitute a "seizure" within the meaning of those Amendments, even though the purpose of the stop is limited and the resulting detention quite brief. The essential purpose of the proscriptions in the Fourth Amendment is to impose a standard of "reasonableness". Thus, 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…

In this case, however, the State of Delaware urges that patrol officers be subject to no constraints in deciding which automobiles shall be stopped for a license and registration check because the State's interest in discretionary spot checks as a means of ensuring the safety of its roadways outweighs the resulting intrusion on the privacy and security of the persons detained.

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…We agree that the States have a vital interest in ensuring that only those qualified to do so are permitted to operate motor vehicles, that these vehicles are fit for safe operation, and hence that licensing, registration, and vehicle inspection requirements are being observed. Automobile licenses are issued periodically to evidence that the drivers holding them are sufficiently familiar with the rules of the road and are physically qualified to operate a motor vehicle. The registration requirement and, more pointedly, the related annual inspection requirement in Delaware are designed to keep dangerous automobiles off the road. Unquestionably, these provisions, properly administered, are essential elements in a highway safety program Furthermore, we note that the State of Delaware requires a minimum amount of insurance coverage as a condition to automobile registration, implementing its legitimate interest in seeing to it that its citizens have protection when involved in a motor vehicle accident.

The question remains, however, whether in the service of these important ends the discretionary spot check is a sufficiently productive mechanism to justify the intrusion upon Fourth Amendment interests which such stops entail. On the record before us, that question must be answered in the negative. Given the alternative mechanisms available, both those in use and those that might be adopted, we are unconvinced that the incremental contribution to highway safety of the random spot check justifies the practice under the Fourth Amendment.

The foremost method of enforcing traffic and vehicle safety regulations, it must be recalled, is acting upon observed violations…It seems common sense that the percentage of all drivers on the road who are driving without a license is very small and that the number of licensed drivers who will be stopped in order to find one unlicensed operator will be large indeed. The contribution to highway safety made by discretionary stops selected from among drivers generally will therefore be marginal at best. Furthermore, and again absent something more than mere assertion to the contrary, we find it difficult to believe that the unlicensed driver would not be deterred by the possibility of being involved in a traffic violation or having some other experience calling for proof of his entitlement to drive but that he would be deterred by the possibility that he would be one of those chosen for a spot check. In terms of actually discovering unlicensed drivers or deterring them from driving, the spot check does not appear sufficiently productive to qualify as a reasonable law enforcement practice under the Fourth Amendment.

Much the same can be said about the safety aspects of automobiles as distinguished from drivers. Many violations of minimum vehicle-safety requirements are observable, and something can be done about them by the observing officer, directly and immediately. Furthermore, in Delaware, as elsewhere, vehicles must carry and display current license plates, which themselves evidence that the vehicle is properly registered; and, under Delaware law, to qualify for annual registration a vehicle must pass the annual safety inspection and be properly insured…

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 - limited in magnitude compared to other intrusions but nonetheless constitutionally cognizable - at the unbridled discretion of law enforcement officials. To insist neither upon an appropriate factual basis for suspicion directed at a particular automobile nor upon some other substantial and objective standard or rule to govern the exercise of discretion "would invite intrusions upon constitutionally guaranteed rights based on nothing more substantial than inarticulate hunches . . . ." Terry v. Ohio. By hypothesis, stopping apparently safe drivers is necessary only because the danger presented by some drivers is not observable at the time of the stop. When there is not probable cause to believe that a driver is violating any one of the multitude of applicable traffic and equipment regulations - or other articulable basis amounting to reasonable suspicion that the driver is unlicensed or his vehicle unregistered - we cannot conceive of any legitimate basis upon which a patrolman could decide that stopping a particular driver for a spot check would be more productive than stopping any other driver. This kind of standardless and unconstrained discretion is the evil the Court has discerned when in previous cases it has insisted that the discretion of the official in the field be circumscribed, at least to some extent. Almeida-Sanchez v. United States, 413 U.S. 266, 270 (1973); Camara v. Municipal Court, 387 U.S., at 532-533.

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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. Automobile travel is a basic, pervasive, and often necessary mode of transportation to and from one's home, workplace, and leisure activities. Many people spend more hours each day traveling in cars than walking on the streets. Undoubtedly, many find a greater sense of security and privacy in traveling in an automobile than they do in exposing themselves by pedestrian or other modes of travel. Were the individual subject to unfettered governmental intrusion every time he entered an automobile, the security guaranteed by the Fourth Amendment would be seriously circumscribed…

Accordingly, we hold that except in those situations in which 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. This holding does not preclude the State of 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. We hold only that persons in automobiles on public roadways may not for that reason alone have their travel and privacy interfered with at the unbridled discretion of police officers. The judgment below is affirmed.

MR. JUSTICE BLACKMUN, with whom MR. JUSTICE POWELL joins, concurring.

The Court…carefully protects from the reach of its decision other less intrusive spot checks "that do not involve the unconstrained exercise of discretion." The roadblock stop for all traffic is given as an example. I necessarily assume that the Court's reservation also includes other not purely random stops (such as every 10th car to pass a given point) that equate with, but are less intrusive than, a 100% roadblock stop. And I would not regard the present case as a precedent that throws any constitutional shadow upon the necessarily somewhat individualized and perhaps largely random examinations by game wardens in the performance of their duties. In a situation of that type, it seems to me, the Court's balancing process, and the value factors under consideration, would be quite different.

With this understanding, I join the Court's opinion and its judgment.

MR. JUSTICE REHNQUIST, dissenting.

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As the Court correctly points out, people are not shorn of their Fourth Amendment protection when they step from their homes onto the public sidewalks or from the sidewalks into their automobiles. But a random license check of a motorist operating a vehicle on highways owned and maintained by the State is quite different from a random stop designed to uncover violations of laws that have nothing to do with motor vehicles. No one questions that the State may require the licensing of those who drive on its highways and the registration of vehicles which are driven on those highways. If it may insist on these requirements, it obviously may take steps necessary to enforce compliance. The reasonableness of the enforcement measure chosen by the State is tested by weighing its intrusion on the motorists' Fourth Amendment interests against its promotion of the State's legitimate interests.

…The State's primary interest, however, is in traffic safety, not in apprehending unlicensed motorists for the sake of apprehending unlicensed motorists. The whole point of enforcing motor vehicle safety regulations is to remove from the road the unlicensed driver before he demonstrates why he is unlicensed. The Court would apparently prefer that the State check licenses and vehicle registrations as the wreckage is being towed away.

Nor is the Court impressed with the deterrence rationale, finding it inconceivable that an unlicensed driver who is not deterred by the prospect of being involved in a traffic violation or other incident requiring him to produce a license would be deterred by the possibility of being subjected to a spot check. The Court arrives at its conclusion without the benefit of a shred of empirical data in this record suggesting that a system of random spot checks would fail to deter violators. In the absence of such evidence, the State's determination that random stops would serve a deterrence function should stand.

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…Although a system of discretionary stops could conceivably be abused, the record before us contains no showing that such abuse is probable or even likely…