In article . 170,
Adrian wrote:
these staff wouldn't have an interface with Oyster.

Why not? Ticket inspectors already have hand-held Oyster wands.

That may not be sufficent for the more complex problems[1]. Y'know,
the ones the machines can't cope with, and that a person at a ticket
office needs to resolve.

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RIP Morph (1977-2005)