Re: PIR Motion Detectors

[J. <jsloud2001<removeme>@netscape.net>]

On Tue, 19 Sep 2006 16:24:22 +0100, "SantaUK" <santa@xxxxxxxxxx>
wrote:

>I think you could have thought out of the box with this one, I doubt the OP
>is talking about when the system is armed (surely!).  Several years ago, the
>Police believed that a member of staff in a store had sprayed the detectors
>in the office during the day with some form of coating that masked the
>detectors.  Then had fitted magnets to the contacts.  Locked up the store at
>the end of the day, and then came back in the middle of the night and
>emptied the safe of £13,000.  Obvioulsy the alarm log showed that no one had
>unset the alarm and there were no activations.  They never quite got to the
>bottom of that one.

Just goes to show you that halfass security works half the time.  A
properly designed  and installed solution using antimasking PIR's, BMS
door contacts, line security,  a secured CCTV system, and two factor
electronic access control can solve almost all security issues.