Be aware that stalkers use GPS by cellphone, other devices

Global-positioning systems, called GPS, and other technologies used by phone companies have made it easier for abusers to track their victims. A U.S. Justice Department report last year estimated that more than 25,000 adults in the U.S. are victims of GPS stalking annually, including by cellphone.

Cellphone users don’t have the right to refuse to be tracked by the account holder. Turning off the phone stops the tracking. Cellphone companies will deactivate a tracking function if law-enforcement officials inform them it is being used for stalking. Some carriers say they give untraceable cell phones to domestic violence victims.

See full article Stalkers Exploit Cellphone GPS