LoJack Corp. of Westwood, Mass., is exploring
whether to market a version of its highly successful system that
locates stolen vehicles to track t-risk people, such as Alzheimer’s
patients. Because Alzheimer’s patients sometimes tear off valuables or
accessories such as cell phones or watches when they wander, the
tracking device would have to be secured to the person, said William
Duvall, LoJack’s chief technology officer. “It would have to be a kind
of bracelet, something not easy to get off,” he said.

LoJack has asked the Federal Communications
Commission for permission to use the same public safety radio frequency
they use to track stolen vehicles to track people, hazardous materials
shipments or other “cargo.”

More here.