4Performance of functions of secretary of Public Works Loan Commissioners, in event of illness, etc., by assistant secretary.
(1)If and so long as it appears to the Public Works Loan Commissioners that their secretary is through illness, absence or other sufficient cause unable to act, they may authorise any of their assistant secretaries to perform all or any of the functions of their secretary, and anything done by an assistant secretary in pursuance of any such authority shall have the same effect as if done by the secretary.
(2)Where anything is done by an assistant secretary of the said Commissioners in purported exercise of the powers conferred by this section, he shall be presumed, unless and until the contrary is shown, to have acted in pursuance of an authority duly given under this section by the said Commissioners.