In the case of the temporary absence or inability to act of a person appointed under paragraph 2, 3 or 4 above, the appointing authority may appoint another person to act as deputy for that person.

A person may only be appointed to act as deputy for a person appointed under paragraph 2, 3 or 4 above if he has the qualification required for appointment under that paragraph.

A person appointed under sub-paragraph (1) above shall, when acting as deputy for a person appointed under paragraph 2, 3 or 4 above, have all the functions of that person.