OSAKA, Japan -- Small GPS trackers, designed to keep track of valuable items or children's whereabouts, are increasingly being used by stalkers, who place them in victims' belongings to monitor their location.
Small devices can be easily hidden among belongings or on vehicles

Readily available anti-loss tags enable stalkers to track people using smartphones. (Photo by Nikkei)
OSAKA, Japan -- Small GPS trackers, designed to keep track of valuable items or children's whereabouts, are increasingly being used by stalkers, who place them in victims' belongings to monitor their location.