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Type in the content of your new page here. The picture illustrates how an electronic tracking device can track a person in order to find them.

The first stage in the tracking process is to hide the device in an appropriate place such as a rucksack or in clothing. The location of the device can be detected by satellite.

A message is received and re-transmitted from the device to a satellite. It is received and then sent as a text message to a mobile phone indicating exactly where the person is. His or her location can also be picked up on an Internet website. The device is able to provide details such as the name of the location or pinpoint a specific place in a message.