On Sat, 18 Oct 2003 11:24:11 +0000, Martin Underwood wrote:
I can certainly think of a way that the cameras could be fooled using a
system that *does* require power - the details given on the web site
together which a "well, fancy that" discovery that I made when using a
CCD-based video camera give the game away. But I won't say any more than
that.

Infrared is usually picked up by cameras, so a few bright LED's will blind
them.

Easilly stopped though with a decent filter