Appeal from High Court decision. C had brought proceedings against D over a design. They sought to restrict D's solicitors from continuing to act on the basis that they had acted for another company at a mediation where a similar IP claim had been settled by C. D's solicitors maintained that their "Chinese wall" was sufficient to ensure privilege maintained. Court held that it was for the C to show prejudice. None was found. Situation was not comparable to Bolkiah where a solicitor was acting against a former client.