Offender presence warning system

Abstract

Offender presence warning system comprises; a tracking device securely attached to an offender limb, containing a GPS receiver and a wireless modem an RF transceiver designed to transmit at time interval RF signal. And a victim carry on RF transceiver device which receives offender tracking device transmitted signals when the offender is located within near proximity of a victim. The victim device in response to received RF transmitted signals from the tracking device, generates warning signal(s) to alert the victim the presence of an offender, and automatically transmits a RF signal(s) to the offender tracking device, which upon receipt of the RF signal generates alarm signal to warn the offender being too close to the victim, If the offender becomes non responsive, the offender tracking device transmits a signal to a monitoring station containing information to both the offender, and the victim unit ID along with GPS location information.