Missouri advances Purple Alert proposal

Missouri lawmakers are advancing House Bill 1840, a proposal that would create a “Purple Alert” system to help quickly locate missing persons with developmental disabilities. The bill was discussed during a House Children and Families Committee hearing on Feb 17, where supporters said the model would function similarly to the Amber Alert.

If enacted, the legislation would require the Department of Public Safety to establish both a training program and an alert system by July 1 2027. The proposal also calls for immediate dissemination of information when someone in the covered population goes missing.

Purple Alert framework and scope

House Bill 1840 sets out a broad definition of developmental disabilities. Under the proposal, developmental disabilities would include cognitive, intellectual and brain injuries. This definition is intended to ensure the alert system can be used for a wide range of individuals who may face elevated risks when missing. Supporters told the committee the Purple Alert would mirror the general approach of Amber Alerts, aiming to move information quickly through established channels so the public and relevant organizations can assist in locating a missing person.

Operational implications for emergency response

The proposed Purple Alert system could strengthen emergency preparedness by improving coordination among law enforcement, media and community organizations when people with developmental disabilities go missing. For IDD-focused agencies and partners, that coordination may also require planning for how families will be supported while an alert is active.

Agencies may need to develop internal protocols that outline roles and communication pathways during alerts. This could include determining who serves as a primary point of contact, how information is gathered and shared, and how to respond to family needs during time-sensitive situations.

Training requirements and awareness impact

A central requirement in House Bill 1840 is the creation of a training program for first responders and others. As the Department of Public Safety develops this program, agencies and stakeholders may want to advocate for training content that is inclusive of the specific needs and circumstances of people with developmental disabilities. The proposal also creates an opening for agencies to consider providing expertise to help shape effective training. Beyond response logistics, implementation could raise public awareness about vulnerabilities faced by people with developmental disabilities. Supporters noted this may also build momentum for broader safety initiatives connected to this population.

For IDD agency leaders, the legislation signals a potential shift in how missing-person events involving developmental disabilities are handled statewide. Missouri’s proposed Purple Alert system is designed to protect individuals with developmental disabilities when they go missing, and agencies may need to monitor legislative progress, prepare to coordinate with alert protocols, and contribute to training so the system addresses the specific needs of this population.