Buckinghamshire CC ANPR cameras

Chris Edwards chris-ukcrypto at lists.skipnote.org
Wed Jan 11 14:56:04 GMT 2012

On Wed, 11 Jan 2012, Brian Morrison wrote:

| On Wed, 11 Jan 2012 08:27:02 +0000
| Mark Lomas <ukcrypto at absent-minded.com> wrote:
| > Instead the police took the lists of all other phones in the same cells at
| > the times of the calls (the data James mentioned) and looked for phones
| > that were nearby on more than one occasion.
| So the disciplined kidnapper needs to ensure that any personal phones
| are switched off


| and that they have a number of other PAYG phones to use for other calls 
| which they dispose of carefully after use

I'm not sure how kidnapper using a fresh PAYG phone for each call makes 
any difference (to this exact scenario).  Simply given knowledge of what 
cell each call was made from, the police can look for *other* phones nearby
on multiple occasions.

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