The National Union of Teachers is threatening to seek a judicial review if schools minister Charles Clarke signs away important education rules to exempt the pathfinder pfi project Pimlico School. Clarke was set to meet all parties in the affair in consecutive half-hour sessions yesterday, reshuffle permitting, and then decide whether to relax laws governing the protection of school playing fields. Guidance rules that schools must have 30,000m2 of hard playing surface, or 60,000m2 grass. Pimlico has 12,000m2 at the moment and the Ellis Williams-designed scheme to replace it reduces that to just 8000m2. The meetings started at 8am with the local education authority, followed by governors, parent architects, teachers, the project developers and finally original architect of the school John Bancroft with former riba president David Rock at 10am.