"Roland Perry" wrote in message
...
In message , at 13:06:44 on Mon,
4 Mar 2013, Basil Jet remarked:
Now how such a check can be done a tube or train when CBC acceptance
is extended - that is a definite challenge!

Is a new handheld device capable of reading such cards not possible?

Reading the cards isn't a problem. What the gripper needs to know is
whether it was used "recently" to enter the system. Paywave cards don't
store transaction history on them, so you'd need to be in contact with
the bank's back-office systems.

Only if you wanted to arrest the person on the spot. If you have their
bank account details and the time, you can work out at the end of the day
whether they need to be summoned to court.

You don't want to arrest them, rather than charge a penalty fare. So will
there be a regime where the gripper takes a "swipe" from every such card
offered, and then a post-processing of the penalty for all those where the
card was either not swiped in originally, or the swipe-in was not properly
registered?

Given that this is based upon wireless technology, there must be some scope
for this information getting lost.

I can't believe that retrospectively fining people because the gripper says
that you were on the train but your bank account details don't show that you
have paid, is going to stand up to expert court scrutiny.

tiom