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Kansas v. Glover (Decision April 6, 2020)

Did the patrol officer make a fair assumption in pulling Glover over?

In the United States Supreme Court

ArgumentNovember 4, 2019
DecisionApril 6, 2020
Petitioner BriefKansas
Respondent BriefCharles Glover, Jr.
Court BelowSupreme Court of Kansas

Case Decision

The Supreme Court ruled against Glover on April 6, 2020.

Scroll down for our Decision Analysis.


October 30, 2020

The Fourth Amendment prohibits patrol officers from stopping just any car on the street. But if the officer has “reasonable suspicion” of a crime however — even a traffic violation — he has the right. In this case, the Supreme Court will decide if Sheriff Deputy Mark Mehrer had “reasonable suspicion” when he pulled over a truck.

In the case, Officer Mehrer pulled over a truck even though he hadn’t seen the driver break any rules. Mehrer had run the truck’s license plate, learned that the truck was licensed to Charles Glover, Jr., and then saw that Charles Glover, Jr.’s license had been revoked. So Mehrer assumed Glover was driving and pulled the truck over. The officer did not attempt to confirm the identity of the driver before making the stop.

It turned out that Charles Glover, Jr. was driving, and the officer gave Glover a ticket for driving while his license was revoked.

Reasonable assumption for the Fourth Amendment?

In one sense, this is a reasonable assumption. The State of Kansas (on behalf of Mehrer) argues so. People usually drive their own cars, so the officer reasonably assumed the person with the revoked license was driving.

But the Supreme Court of Kansas ruled the opposite view: that the officer had not acted reasonably. The Fourth Amendment gives individuals protection from being pulled over unless the officer has “reasonable and articulable” suspicion that the person is committing, has committed or is about to commit a crime. In this case, the Kansas high court said, without specific facts identifying that the driver was the registered truck owner, the officer had no reason to assume the driver was violating the law.

The owner-is-the-driver assumption is generally not reasonable suspicion to make a traffic stop, the Kansas court concluded. Family members drive cars registered to other family members all the time. There’s no law against people driving cars that are registered to others, even when the owner’s license has been revoked. Although, in this case, the officer did have a suspicion that a specific law was being broken (driving without a revoked license), the officer did not have a reason to believe the driver was violating the law. The officer would have had to find a specific fact connecting the driver to his suspicion of a crime in order to make the suspicion reasonable.

Kansas: you’re asking for “probable cause”

Kansas argues back: “reasonable suspicion” is a different standard than “probable cause.” Officer Mehrer did have “reasonable suspicion” to believe the driver had a revoked license: the driver was in the car of the person with the revoked license. That’s good enough. Additional facts to identify the driver was Glover would have given the officer a higher standard of proof: “probable cause.” That’s a different legal standard, and it’s not necessary here.

Minimal or major intrusion of privacy?

To the State of Kansas, a traffic stop is a minimal privacy intrusion. The state points out that driving comes with a large number of state regulations because it’s a dangerous activity that affects many people. In fact, Fourth Amendment law recognizes a lessened privacy right for individuals when driving than when they are in their homes or even out on the street. Thus, the state continues, getting pulled over goes with the territory, and it’s not a major interference.

Glover disagrees. First of all, Glover’s brief argues, a large number of people are driving cars that are not registered in their names. Millions of people have their licenses suspended at any given time. Kansas’s rule would allow officers to pull over anyone driving a car registered to individuals with revoked licenses, which is a lot of people and therefore a large privacy intrusion to the country in general. As technology advances (for example, with automated license plate readers), it’s quite possible that states will be able to take advantage of this large surveillance power and be able to stop cars for no reason at all. Glover argues that’s exactly the type of government behavior that the Fourth Amendment exists to prevent.

A traffic stop isn’t a minor privacy intrusion, Glover continues. Unlike a checkpoint stop, a roadside stop causes much more anxiety and takes much more time for the person who is stopped. Once a person is stopped, even if an officer realizes the person has done nothing wrong (like isn’t the person with the revoked license), the officer still will engage with the person, may interrogate the person and look around in the car. This rule, Glover says, will make subject people to these intrusive roadside stops without ever having done something wrong.

The United States filed a brief in support of Kansas in the case.

The Supreme Court will hear arguments on November 4, 2019.


The Supreme Court issued a decision in Kansas v. Glover on Monday April 6, 2020. Eight of the justices agreed that Officer Mehrer had “reasonable suspicion” to pull over the truck of Charles Glover, Jr.

Glover’s license had been revoked, yet his truck was out and about. Officer Mehrer pulled the truck over, inferring that Glover was the one driving. Indeed, he was. But that’s not the point. Did Officer Mehrer have “reasonable suspicion” to pull Glover’s truck over? Was it reasonable for Mehrer to assume that Glover himself was driving?

Justice Thomas wrote the majority opinion. The Fourth Amendment requires officers to have “a particularized and objective basis” to suspect legal wrongdoing to make an investigative traffic stop. In other words, the officer must have “reasonable suspicion” of wrongdoing, and courts allow an officer to make “commonsense judgments and inferences about human behavior” in order to form their suspicions. The Court ruled that Officer Mehrer’s inference that Glover was driving was reasonable because it’s commonsense to assume that the owner of the vehicle is the driver. The Court adds that the presence of additional facts could have made such an inference unreasonable and that each case will take into account the “totality of the circumstances.”

Justices Kagan and Ginsburg concurred in the judgement but wrote separately. The two justices added that in their opinion the officer’s inference was made reasonable only because the state of Kansas has a relatively high standard for revoking licenses. Kansas “almost never revokes a license except for serious or repeated driving offenses” or for other more serious criminal activity. Thus, Officer Mehrer had reasonable suspicion because he would know already that Glover has a willingness to flout traffic restrictions. Without the knowledge supplied by Kansas’s standard for license revocation, the two Justices would not have supported that the inference was reasonable.

Justice Sotomayor dissented. She wrote that the majority’s decision disregards the law’s evidentiary requirements and also improperly lowers the state’s burden of proof. An officer should not, she argues, make inferences like an ordinary person would. An officer is held to a stronger investigatory standard than the ordinary person. An officer must be able to articulate particularized facts to justify an inference, not simply rely on a categorical analysis relating to a person’s prior offenses (having the license revoked). The majority’s decision, Sotomayor says, allows an officer to make a conclusion based on a lack of information, rather than by presenting knowledge of facts, which flips the burden of proof.

Read the decision.

Kansas v. Glover (Decision April 6, 2020)

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About the Author

Mariam Morshedi

Mariam Morshedi

Mariam Morshedi is the Founder and Executive Director of Subscript Law. Before starting Subscript Law, she practiced civil rights law for AARP Foundation, where she litigated housing, consumer and disability rights issues.

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