We don't know whether it was Julie or Susan Battersby who was behind the cheque fraud which I am not excusing,but everything points to it being a spur of the moment folly in order to impress and keep in with Jeremy,whom they knew would turn a blind eye because he was the most crooked of all of them,having returned from the Antipodes burglarizing a jeweller's shop stealing two Cartier watches and filching the diamonds from the rings of unsuspecting passers-by with his friend Scooter in tow.