Town and country planning – Permission for development. The claimant applied to quash the decision of the inspector appointed by the first defendant Secretary of State, refusing the claimant's appeal to grant planning permission for a wind energy development. The Planning Court, in allowing the application, held that the inspector had proceeded on the basis of an error of fact, which had played a material part in the decision she had reached. That had given rise to unfairness to the claimant and amounted to an error of law.