If any question arises between a local authority and a person who has executed, or proposes to execute, any work—
the question may, on an application made jointly by him and the local authority, be referred to the Minister for determination and, the Minister's decision shall be final:
Provided that the Minister may at any stage of the proceedings on the reference and shall, if so directed by the High Court, state in the form of a special case for the opinion of the High Court any question of law arising in those proceedings.