Thursday, December 21, 2006

Cell phone pinpoints location

Even if you are not making or receiving a call your cell phone (or mobile as it is called in the UK) can indicate where you are. The phone transmits a signal which enables investigators using cell site analysis technology to locate your call.

Cell phone companies maintain records of which beacon a particular phone was locked onto at any particular time. With this technology it is possible, if an ideal situation exists,to identify the location of an individual phone to within a few hundred yards.

In the UK this cell site analysis is said to have helped detectives solve a number of high profile cases like the 2002 Soham murders of Holly Wells and Jessica Chapman. Jessica Chapman's phone indicated where its signal died on the night the girls disappeared.

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