6. (1) The seal of the NCH shall be authenticated by—

(a) the signature of the chairperson of the Board or another member of the Board authorised by it to act in that behalf, and

(b) by the signature of a member of staff of the NCH authorised by it to act in that behalf.

(2) Judicial notice shall be taken of the seal of the NCH and any document purporting to be an instrument made by, and to be sealed with the seal of the NCH, authenticated in accordance with subsection (1), shall, unless the contrary is shown, be received in evidence and be deemed to be such instrument without further proof.