Construction contract – Adjudication – Adjudicator's jurisdiction. Court of Session: Refusing an appeal in an action in which the appellants resisted enforcement of an adjudicator's award, the court held that the adjudicator's determination was in respect of an issue which arose from the contract on which the referral to arbitration proceeded, and accordingly rejected the contention that the determination was ultra vires because the adjudicator had not had requisite jurisdiction.