It was nearing dusk one Sunday evening last November when Hillsborough County deputies in Tampa, Florida, were notified about a missing 9-year-old child with autism. With weather conditions worsening, deputies could not use an air unit to help search for the child, but a SafetyNet bracelet he was wearing allowed them to pinpoint his location. SafetyNet works by allowing law enforcement agencies access to GPS information from bracelets worn by those with cognitive conditions when they go missing. The child, who was hiding behind an air conditioning unit, was found about 20 minutes after the signal was detected.