Until evidence is given to the contrary, no proof is required in any proceedings under this Act—
(a) of the proper constitution of a planning authority or responsible authority or of its membership; or
(b) that a planning authority is the relevant planning authority for the purposes of this Act; or
(c) that a responsible authority is the relevant responsible authority for the purposes of this Act; or
(d) of any order or direction to prosecute or of the particular or general appointment of an officer of a responsible authority to take proceedings against any person; or
(e) of the power of any officer of a responsible authority to prosecute; or
(f) of the appointment of the chairperson or deputy chairperson or any officer of a planning authority or responsible authority; or
(g) of the presence of a quorum at any meeting at which any order or direction is made or given or any act or matter is done or dealt with by a planning authority or responsible authority.