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?
--
Roland Perry