(CNN) -- Moments before police fatally shot Daunte Wright during a traffic stop Sunday in a Minneapolis suburb, he called his mother and told her he'd been pulled over for hanging air fresheners from his rearview mirror.
It's not clear how much of a role the air fresheners played in the traffic stop. Brooklyn Center Police Chief Tim Gannon told reporters Monday that Wright was originally pulled over for an expired tag and that when officers approached his car, they saw an item hanging from the rearview mirror.
Officers ran Wright's name and found a gross misdemeanor warrant, Gannon said, without providing additional details on the dangling item or the warrant. He said the shooting appeared to be "accidental."
But Minnesota is one of at least several states with laws that prohibit hanging items from a vehicle's rearview mirror or affixing them to the windshield on the grounds that they could obstruct the driver's vision.
"A person shall not drive or operate any motor vehicle with ... any objects suspended between the driver and the windshield, other than: sun visors; rearview mirrors; driver feedback and safety monitoring equipment when mounted immediately behind, slightly above, or slightly below the rearview mirror," Minnesota's law states.
Such minor infractions have been questioned by Black motorists and others who view them as a pretext for racially motivated traffic stops.
"We have concerns that police appear to have used dangling air fresheners as an excuse for making a pretextual stop, something police do too often to target Black people," the ACLU of Minnesota said Sunday. It called for an independent investigation into the shooting.
Wright's death has sparked protests and further inflamed tensions in a city already on edge over the police killing of another Black man. Testimony continued Monday in the trial of former Minneapolis police officer Derek Chauvin, who is charged in the May 2020 death of George Floyd.
Air fresheners in cars have led to legal challenges
Police traffic stops because of dangling air fresheners have already led to several court challenges.
In September 2018, police pulled over two Black men in Chicago for having an air freshener hanging from a rearview mirror. During the stop officers found weapons in the vehicle, and the men were each charged with unlawful possession of a firearm by a felon.
The men did not allege they were racially profiled. But they moved to suppress the evidence, arguing that the air freshener was not sufficient probable cause for the officers to pull them over.
Last year a federal appeals court ruled that the stop was legitimate, saying police had "reasonable suspicion" to believe that the tree-shaped air freshener obstructed the driver's view. Both men were sentenced to prison.
In October 2012 WNBA star Seimone Augustus, then a player with the Minnesota Lynx, complained on Twitter that she had been pulled over at a mall in Roseville, a Minneapolis suburb, for having an air freshener in her car. She said the officer then questioned her about her out-of-state license plates and other crimes in the area.
"Supposedly he stop me for an air freshener hanging in my window, but then went on talking about theft at the mall," tweeted Augustus, who is Black. "And the fact that my car was at the mall with out of town plates ... I thought this was a free country."
A Roseville police spokesman told ESPN the traffic stop had nothing to do with race and that Augustus was only issued a warning.
Virginia just added another provision to its law
Under Arizona state law, it's illegal to have an object near the rearview or side mirrors if it "obstructs or reduces" the driver's view.
But a sheriff's deputy was fired in Arizona last year after he pulled over a Black man for having an air freshener hanging from his rearview mirror, then repeatedly asked him if he had drugs in the car.
In Virginia, a "dangling object" near a car's windshield used to be grounds for a valid stop, but a new law that went into effect on March 1 changed things, said Andrew Flusche, a traffic attorney in Stafford, Virginia.
"Virginia still penalizes dangling objects, but the police now must have another justification to first stop the vehicle," he said.
"Dangling object stops are a classic example of a pretextual stop, where the police are looking for a valid reason to stop a motorist for something else -- such as suspicion of DUI or maybe to try to search the vehicle," Flusche said.
Police say 'pretext' stops are necessary to fight crime
So-called "pretext stops" allow police to use minor traffic infractions or broken taillights as grounds to investigate motorists for more serious crimes.
Police have defended the stops as crucial for fighting possession of illegal drugs, weapons possession, human trafficking and drunken driving.
But civil rights groups say the tactic unfairly targets Black drivers.
In 2018, the American Civil Liberties Union sued the Bakersfield Police Department in California after its officers jailed a Black man who was driving a car that had an air freshener hanging from its rearview mirror. The police also demanded personal information from the man's passengers, the ACLU said.
The city of Bakersfield settled the lawsuit in 2019 without admitting any liability.
™ & © 2021 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.