Court Ruling: Chalking Tires Amounts to Unconstitutional Search of Vehicle

A unanimous ruling by a three-judge panel of the U.S. Sixth Circuit Court of Appeals on April 22 found that the chalking of tires by parking enforcement officers on public streets is a violation of the Fourth Amendment.

4 minute read

April 29, 2019, 10:00 AM PDT

By Irvin Dawid


Parking Restrictions

Johnny Habell / Shutterstock

"Chalking violates the Fourth Amendment’s ban on unreasonable searches and seizures, the Sixth Circuit Court of Appeals judges said, reversing a lower court’s decision to dismiss the suit and sending it back for trial instead," reports Campbell Robertson for The New York Times.

CNN: At 1:15 minutes, Michael Smerconish asks the plaintiff's attorney how chalking constitutes a "search."

Two clever lawyers in Saginaw, Mich., saw a connection between chalking tires and a 2012 Supreme Court decision, United States v. Joneswhich involved a GPS tracker that the police had secretly attached to Antoine Jones' car without obtaining a valid warrant, explains Robertson.

... Justice Antonin Scalia, writing for the five-justice majority, held that the heart of the matter was the physical placement of a device on Mr. Jones’s “private property, for the purpose of obtaining information.” It was this “government trespass,” he wrote, that made the use of the tracker without a warrant an unconstitutional search.

The Saginaw case, "Alison Patricia Taylor, Plaintiff-Appellant vs. City of Saginaw; Tabetha Hoskins, Defendants-Appellees [pdf]," was initially heard on April 5, 2017, by the U.S. District Court for the Eastern District of Michigan in Bay City. Appeals court Judge Bernice Donald wrote for the panel, surprisingly showing some humor in the use of a pun:

Alison Taylor, a frequent recipient of parking tickets, sued the City and its parking enforcement officer Tabitha Hoskins, alleging that chalking violated her Fourth Amendment right to be free from unreasonable search. The City moved to dismiss the action. The district court granted the City’s motion, finding that, while chalking may have constituted a search under the Fourth Amendment, the search was reasonable.

Because we chalk this practice up to a regulatory exercise, rather than a community-caretaking function, we REVERSE.

The 10-page court decision answers two questions: Does chalking constitute "a search within the meaning of the Fourth Amendment; and second, whether the search was reasonable."

"Among other legal rationales, the [trial] judge found that the police have the authority to enforce parking regulations, even to tow cars, as an exercise of “community caretaking," writes Robertson.

The Sixth Circuit judges disagreed, finding that the enforcement of a two-hour parking limit was not a matter of public safety, but simply a way of raising revenue. Nor, they said, was there any probable cause to justify the search, since the chalk marks are made on cars that, at that time, are still legally parked.

This correspondent finds some irony in basing the appeal on the  Jones case as chalking couldn't be more different than employing GPS technology. As the plaintiff herself noted, "There should be a better way to track this, ... What if it’s raining one day?”

Possible implications for "free parking"

No doubt more modern methods utilizing technology will be considered in lieu of chalk, as UCLA urban planning Professor Donald Shoup told Robertson.

Though officers these days may also take time-stamped photographs to document the infraction, “chalking tires is very old-fashioned,” said Shoup. “The first references I’ve seen to it were in the 1920s.”

Every city with a parking ordinance probably used chalking at one time, Professor Shoup said, but the practice is becoming less common, replaced by computerized meters, pay-by-phone apps and digital vehicle recognition systems, including one called autoChalk.

However, it should be noted that the first two methods Shoup mentioned apply to priced parking.

Alison Taylor, the plaintiff who worked at a local newspaper, chose to park on the street or a public lot where parking was unmetered but limited to two hours, as opposed to an all-day lot, also unpriced, reports Matthew S. Schwartz for NPR. 

"We don't think everyone deserves free parking," Taylor's lawyer, Philip Ellison, told The Associated Press. "But the process Saginaw selected is unconstitutional. ... I'm very glad the three judges who got this case took it seriously. It affects so many people."

Had street parking been metered, it is possible that Ms. Hoskins and other parking enforcement officers would need only check the meters or pay stations to see if violations had occurred. This nexus of chalking to unpriced parking was noted by Suzanne Maxwell, director of the Bay City Downtown Development Authority, where the trial court is located. Robertson of the Times writes:

Bay City is working on an alternative to chalking, said Maxwell, but in the meantime, it has no procedure for enforcing time limits in free spots downtown.

"It is unclear what will happen now in the wake of the decision, which is binding in the four states covered by the Sixth Circuit — Michigan, Ohio, Kentucky and Tennessee," adds Robertson.

Hat tip to Michael Smerconish (CNN).

Thursday, April 25, 2019 in The New York Times

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Man in teal shirt opening door to white microtransit shuttle with cactus graphics and making inviting gesture toward the camera.

Albuquerque’s Microtransit: A Planner’s Answer to Food Access Gaps

New microtransit vans in Albuquerque aim to close food access gaps by linking low-income areas to grocery stores, cutting travel times by 30 percent and offering planners a scalable model for equity-focused transit.

June 13 - U.S. Department Of Transportation

Group of people at table set ouf with picnic food on street during a neighborhood block party.

This City Will Pay You to Meet Your Neighbors

A North Kansas City grant program offers up to $400 for residents to throw neighborhood block parties.

June 13 - The Kansas City Star

Crowd gathered with protest signs on April 5, 2025 on steps of Minnesota state capitol protesting Trump cuts to social security and other federal programs.

Commentary: Our Silence Will Not Protect Us

Keeping our heads down and our language inoffensive is not the right response to the times we’re in. Solidarity and courage is.

June 13 - Shelterforce Magazine