POKUA v. STATE INSURANCE CORPORATION Insurance—Motor vehicle—Third party risks—Validity of named driver clause—Action against insurers to satisfy judgment against insured—Policy of third party insurance on vehicle—Named driver clause specified in policy limiting liability of insurers—Enforcement of judgment debt where another driver in charge of vehicle—Denial of liability by insurers—Whether named driver clause contravened the provisions of the Motor Vehicles (Third Party Insurance) Act, 1958—Motor Vehicles (Third Party Insurance) Act, 1958 (No. 42 of 1958), ss. 3 (1) and 6 (1) (b).