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"The Greenfield Police Department is buying tracking devices that use radio signals to locate people with Alzheimer's disease, autism or other conditions making them prone to wander and become lost.
Individuals wear wristbands containing tiny devices that transmit radio signals on pre-set frequencies, Greenfield Police Chief Clarke Mercer said. Police use tracking receivers that they tune to the frequency of the person they are seeking."
Greenfield police offer tracking devices | IndyStar.com
Individuals wear wristbands containing tiny devices that transmit radio signals on pre-set frequencies, Greenfield Police Chief Clarke Mercer said. Police use tracking receivers that they tune to the frequency of the person they are seeking."
Greenfield police offer tracking devices | IndyStar.com
