Discusses "McAlpine PPS Pipeline Systems Joint Venture v Transco plc" (QBD [2004] 8 BLR 352-373(22), which looked at grounds by which an adjudicator's decision can be challenged. Transco (T) had employed McAlpine (M) to carry out construction works and when a dispute arose as to payment, M referred the matter to adjudication. M claimed entitlement to interest under the contract when T failed to certify the amount due by the contract assessment date. T claimed it had not had the opportunity to view the whole claim against it. Adjudicator ordered M to give background to the compensation claims, which it did. T objected to the volume of evidence as not submitted previously and refused to pay M as ordered by the adjudicator. M brought proceedings to enforce the decision. Judge decided M was not entitled to summary judgment in respect of an adjudicator's decision in its favour, as T had a realistic chance of contending that the adjudicator gave a decision in a dispute not referred to him and acted beyond his jurisdiction.