Listen • 3:33 The purple alert would function similarly to other missing person alerts. Adults who don't fit the criteria for a silver alert could be covered under a purple alert if they have a disability or brain injury and can't be returned safely without law enforcement intervention. A proposal to create a "purple alert" for missing adults with certain disabilities or brain injuries is heading to the governor's desk. The proposal is for people who have cognitive, developmental, physical, or emotional disabilities as well as those with brain injuries who go missing and cannot be returned safely without law enforcement intervention.