77.— (1) In any legal proceedings, a certificate that—

(a) states that a specified function of the Executive was on a specified day delegated to the F253[chief executive officer],

(b) states that the delegation of the function concerned remained in force on a specified day, and

F253[(c) is signed by the chairperson,]

shall, unless the contrary is proved, be evidence of the matters stated in the certificate.

(2) In any legal proceedings, a certificate that—

(a) states that a specified function was on a specified day delegated or subdelegated to an employee of the Executive,

(b) states that the delegation or subdelegation of the function concerned remained in force on a specified day,

(c) specifies the limitations, if any, imposed on the delegation or subdelegation of the function concerned, and

F253[(d) is signed by the chief executive officer or an employee of the Executive who has subdelegated a specified function of the Executive delegated or subdelegated to him or her under section 21D,]

shall, unless the contrary is proved, be evidence of the matters stated in the certificate.

(3) A certificate referred to in subsection (1) or (2) that appears to be signed by F253[the chairperson, the chief executive officer or] the employee concerned, as the case may be, shall be admissible in any proceedings as evidence of the matters stated in the certificate without proof of his or her signature.]