Missouri enacted House Bill 1840, also known as RJ's Law, creating a statewide Purple Alert System within the Department of Public Safety. Signed into law on July 13, 2026, the legislation aids in locating missing individuals with developmental disabilities, including brain injuries and cognitive impairments, whose disappearance poses an immediate danger. The law requires the development of law enforcement training programs that include crisis intervention techniques for interacting with developmentally disabled populations. Additionally, the bill incorporates Mason's Law, allowing individuals with communication-impairing conditions to voluntarily add a specific designation to their driver's license or vehicle registration. This designation is accessible through the Missouri Uniform Law Enforcement System to ensure appropriate interactions during emergencies.
The enactment of Missouri's Purple Alert System provides tools for managing cases involving highly vulnerable individuals. When an individual with a cognitive or developmental disability goes missing, they can be especially vulnerable to bad actors or accidents. If lost, intellectually disabled individuals may become confused, be unable to recognize signs of danger, or not know how to ask for help. The new alert system helps disseminate information to media and surrounding law enforcement agencies.
The legislation mandates specialized law enforcement training. This training includes crisis intervention techniques specifically designed for handling individuals with developmental disabilities. Some individuals may be nonverbal or not understand how to respond to commands from law enforcement. Knowing the nature of a missing person's disability informs law enforcement and enables a more calm and appropriate interaction when the person is located.
Furthermore, the inclusion of Mason's Law creates a voluntary database designation. Individuals with health conditions that impair communication can apply for a designation on their state vehicle registration or driver's license. This critical data is accessible through the Missouri Uniform Law Enforcement System (MULES) during traffic stops or other encounters. This ensures appropriate interaction when law enforcement communicates with these individuals in the field.
Key Findings
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Missouri enacted House Bill 1840 on July 13, 2026, establishing the Purple Alert System for missing persons with developmental disabilities.
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The legislation requires the Department of Public Safety to develop law enforcement training focused on crisis intervention techniques for these populations.
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Missing individuals with intellectual disabilities may be nonverbal, unable to recognize danger, or unable to follow law enforcement commands.
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Mason's Law allows for a voluntary communication-impairment designation on state IDs and vehicle registrations, accessible via the Missouri Uniform Law Enforcement System.
Sources
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BillTrack50.com (July 13, 2026): MO HB1840 | BillTrack50 (Link)
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SpecialNeedsAnswers.com (Sept 16, 2025): How Can Purple Alerts Help People With Disabilities? (Link)
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TrackBill.com (April 8, 2026): SB1409 | Missouri 2026 | Creates the "Purple Alert System" within the Department of Public Safety (Link)