Town and country planning – Permission for development. The claimants sought judicial review of the defendant local planning authority's failure to take enforcement action against the interested parties' motocross track, and its decision to grant planning permission for extended use and a noise attenuation barrier. The Planning Court, in dismissing the application, held that there had been no error in the authority's approach to enforcement as the correct questions had been addressed. Further, it had been entitled to conclude that the proposed development would result in an improvement to amenity with a reduction in noise levels when compared to the existing use.