200. Historical background.

By the Coal-Mining (Subsidence) Act 19501 (now repealed) and the subordinate legislation made under it, obligations were placed on the National Coal Board (later renamed the British Coal Corporation)2 to carry out repairs or to make payments in respect of subsidence damage to dwelling-houses caused by coal mining, and power was given to the Corporation to execute works for the prevention or reduction of such damage3. The principal object of the legislation was to remedy the perceived injustices resulting from the fact that in many areas of the country, as a result of previous dealings in the surface land