Dave Liquorice wrote:
On Wed, 28 Oct 2009 00:20:52 +0000, Pete Verdon wrote:

So there's clearly a need for "one-shot" tags that are neutralised when
the goods are sold. These exist at present in the form of tags with
their aerials in perforated "wings" that get snapped off

And doesn't stop people snapping off the wings before they have been
through the checkout...

If they developed a tag that could be zapped via the RF side it
wouldn't be long before a little pocket box appeared that did the
same thing...

Doubtless true, but getting hold of such a box is mildly more difficult
than the current approach of sticking a DVD or whatever in your pocket.

Pete