BRITISH ENERGY POWER AND TRADING LTD AND OTHERS v CREDIT SUISSE AND OTHERS
                                                                    [2008] 1 Lloyd's Rep 413
                                                                    COURT OF APPEAL
                                                                    Before Sir Anthony Clarke MR Lord Justice May and Lady Justice Hallett
                                                                    
Option agreements - Assignment of rights under sub-participation agreements by holders of options - Assignments prohibited by option agreements - Whether prohibition on assignment binding on all parties to the option agreements - Effect of assignment - Whether prohibition on assignment contrary to public policy.