Inmates who often wear shorts or dresses, or wish to socialise without drawing attention, might choose the wrist tag for its discreet nature. Edition: Singapore Indonesia Asia US/UK SINGAPORE: The Singapore Prison Service (SPS) is rolling out new GPS-enabled wrist trackers for inmates serving their sentences in the community, in efforts to reduce the stigma associated with wearing ankle tags. Those who often wear shorts or dresses, or wish to socialise without drawing unwanted attention, can