Discretion is the 384th episode of The Bill.

On his first day as Home Beat Officer, P.C. Smollett investigates the mugging of an old lady and discovers a rather unusual high-rise supermarket. Meanwhile, P.C. Stringer deals with a boy found unconscious by the canal. W.P.C. Donna Harris arrives at the station.

First appearance of W.P.C. Donna Harris (Louise Harrison).

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