KANSAS CITY, Mo. — A routine traffic stop can be a source of anxiety for any motorist, but for Mason Ott, a 21-year-old with autism, it transformed into a harrowing, life-altering confrontation. The incident, which occurred on an autumn afternoon shortly before Thanksgiving last year, serves as the catalyst for a significant legislative change in Missouri. Today, his mother, Megan Brown, remains haunted by the memory of the moment a police officer, attempting to pull her son over for a minor traffic violation, drew his service weapon and shouted orders that her son was neurologically ill-equipped to process.
Ten months later, that terrifying afternoon has evolved into a symbol of progress. In July, Missouri Governor Mike Parson signed into law a measure officially dubbed “Mason’s Law.” The legislation, championed by State Representative Chris Brown of Clay County, creates a mechanism for law enforcement to identify drivers with autism or other communication-related disabilities through their vehicle registration before they even approach the window. It is a proactive, systemic solution that families and advocates hope will eventually serve as a template for similar policies across the United States.
A Routine Stop Gone Wrong
The events leading to the passage of the law began around noon on a Monday in late November. Ott, a high-functioning young man who attended Staley High School and later completed a two-year certificate program at the University of Kansas for young adults with intellectual disabilities, was driving his white 2014 Ford Escape through the Northland area of Kansas City.
According to police accounts later shared with his mother, an officer clocked Ott driving 42 mph in a 35 mph zone near the Maplewoods Parkway underpass. Megan Brown, who lives in Lawrence, Kansas, describes her son as a meticulous “rule follower.” His adherence to structure and routine is a hallmark of his personality; he lives independently in an apartment and maintains steady employment at a local supermarket on North Oak Trafficway.
When the officer activated his lights, Ott, having been taught by his parents to find a safe location to pull over, initially complied. However, the nuance of the instruction proved problematic. Because Ott interprets directives with extreme literalism, he did not understand that he was expected to stop immediately on the shoulder. Instead, he pulled back onto the road, carefully signaling his intentions, and continued driving for approximately 1.5 miles toward his apartment complex.
“There was no high-speed chase, nothing of the sort,” Megan Brown explained. “He was driving 35 mph and using his blinker.”
Upon reaching the parking lot of his apartment complex, the situation escalated rapidly. Dashcam footage would later reveal the officer exiting his cruiser with his sidearm drawn, issuing loud, aggressive commands for Ott to exit the vehicle with his hands raised. Overwhelmed by the sensory input and the direct threat, Ott froze. He became completely non-responsive, a common reaction for individuals on the autism spectrum when subjected to high-stress, unpredictable social interactions.
The crisis was only averted when staff members from the apartment complex ran outside, shouting to the officer, “Stop! Stop! He has autism.” While the officer initially ordered the bystanders to retreat, the intervention eventually led to a de-escalation of the scene. The officer, the apartment staff, and Ott eventually moved into the complex’s office, where they placed a call to Megan Brown.
The Aftermath of Fear
For Megan Brown, the phone call was the beginning of a long journey toward understanding. She was at work in Lawrence when she was alerted that her son had been pulled over, but the gravity of the encounter—the drawn weapon, the potential for a fatal misunderstanding—was not immediately clear. It was her former husband, who lived closer to the scene, who provided the chilling details of the police interaction.
“I fell,” Brown recalled of that moment. “There were some stairs there, and I just fell. I was burying my head in a towel, and I just started bawling.”
In the months that followed, Brown’s focus shifted from shock to action. She secured the police body-camera footage and began reaching out to other parents of children with autism. She discovered that her fear was far from unique; it was a shared, gnawing anxiety among parents of neurodivergent children who might one day find themselves behind the wheel.
One such parent, Lauren Ray of Kansas City, whose 17-year-old son, Sam, is also on the autism spectrum, found the story deeply resonant. “She wanted to share with me Mason’s story because she was worried that Sam would have reacted the same way, which I truly believe he would have,” Ray said. “You always have that fear, as a parent, of how your child will react, whether they’re typical or atypical. But this situation never even crossed my mind. That’s why when Megan shared it, I was like, ‘We have to do something.’”
A Legislative Solution
The two mothers took their concerns to State Representative Chris Brown, a former history teacher at Oak Park High School whom they had known for years. Recognizing the urgency of the issue, the representative agreed that the existing system for traffic stops was insufficient for citizens with communication impairments.
Megan Brown had researched solutions in other states, noting that Texas offers “autism awareness” specialty license plates and registration options that alert law enforcement to disabilities through the vehicle’s data. Inspired by these models, Representative Brown committed to bringing the issue before the Missouri Legislature during the 2024 session.
In March, both mothers traveled to the state capitol to testify in support of the bill. The legislation they proposed—and which was eventually signed into law—allows individuals with a medically certified condition that impairs their ability to communicate with law enforcement to register that information with the Missouri Department of Revenue. The system, which is expected to be fully operational by early 2027, will integrate with the Missouri Unified Law Enforcement (MULE) system. When an officer runs a license plate during a stop, they will be notified in advance that the driver may have a communication disability, allowing the officer to adjust their approach and de-escalate potential misunderstandings before they occur.
Lauren Ray emphasized the broad scope of the law, noting that it extends far beyond autism. “It’s all aspects,” she said. “If there’s a medical diagnosis—from a mental disability to a physical disability, or even PTSD—if you have a medical diagnosis that would hinder how you would respond in an emergency situation, it’s a win-win for law enforcement and for the individual.”
A Community-Led Effort
Representative Chris Brown highlighted the organic nature of the legislative process, noting that the bill was drafted without the influence of corporate lobbyists or big business. “One of the cool things about this bill is that it was absent lobbyists,” he noted. “It was literally two moms—one of the moms had an unfortunate situation with law enforcement. It was so organic. They called me up and said, ‘Hey, we can do better.’ And I was like, ‘You know what? You’re right.’”
For Mason Ott, who received no citations for the incident, the passage of the law is a welcome development. “It will be really helpful,” he said. His mother, meanwhile, is still navigating the interim period. While she currently uses a bumper sticker on her son’s car that reads, “Autistic driver. Please be patient,” she admits to having mixed feelings about it. While the sticker serves as a crucial warning, she worries that it could also make her son a target for individuals looking to exploit his vulnerability.
As the state prepares to implement the new system, Megan Brown’s goal is to ensure that the public and law enforcement are fully educated on the intent and utility of the law. The fact that the legislation bears her son’s name remains a source of immense pride and emotion.
“I never expected it to be named after him,” Brown said, reflecting on the journey from that terrifying afternoon in the apartment parking lot to the governor’s office. “When Chris Brown said, ‘We’re going to name it Mason’s Law,’ I just started crying. I just thought it was amazing.”
The passage of the law marks a significant step toward bridging the gap between law enforcement practices and the needs of a diverse public. For the Brown family and countless others across Missouri, it represents more than just a change in administrative procedure; it is a promise of safer interactions and a recognition that, with the right information, tragedy can be prevented.

