Regulation 6 Powers of Secretary
All documents of the Commissioners shall, if purporting to be signed by their Secretary, be deemed, until the contrary is proved, to be made or issued by the Commissioners; and all directions given or acts done by the Secretary shall be deemed, until the contrary is proved, to be given or done by the Commissioners; and all documents may be proved by the production of a copy or extract purporting to be certified by the Secretary to be true. For the purpose of this Regulation no proof shall be required of the handwriting or official position of the person purporting to be the Secretary.