(1) The President, a Governor, the Prime Minister, a Federal
Minister, a Minister of State, the Chief Minister and a Provincial
Minister shall not he answerable to any court for the exercise of
powers and performance of functions of their respective offices or
for any act done or purported to be done in the exercise of those
powers and performance of those functions:
Provided that nothing in this clause shall be construed as
restricting the right of any person to bring appropriate
proceedings against the Federation or a Province.