(1) In any legal proceedings, a certificate apparently signed by an officer of the Corporation, certifying—
(a) that a person was, on a day specified in the certificate, an employer;
(b) that a person was, on a day specified in the certificate, a worker,
will, in the absence of proof to the contrary, be proof of the matters stated in the certificate.
(2) In any legal proceedings against a person for failing to register with the Corporation as an employer, a certificate apparently signed by an officer of the Corporation, certifying that the person was not, on a specified day, registered as an employer will, in the absence of proof to the contrary, be proof of the matters stated in the certificate.
(3) In any legal proceedings, a certificate apparently signed by an officer of the Corporation, certifying that an amount specified in the certificate is payable to the Corporation, by way of premium, fee, supplementary payment or fine, by a person named in the certificate, will, in the absence of proof to the contrary, be proof of the liability.
(4) In any proceedings against a person for failing to furnish a return under this Act, a certificate apparently signed by an officer of the Corporation certifying that the return was not received before the expiration of the period within which it was required to be furnished will, in the absence of evidence to the contrary, be proof that the defendant failed duly to furnish the return.
(5) In any proceedings, a certificate apparently under the seal of the Corporation certifying that an officer of the Corporation named in the certificate was, on a day specified in the certificate, invested with specified delegated powers or functions will, in the absence of evidence to the contrary, be proof of the matters stated in the certificate.
(6) In this section—
"officer of the Corporation" includes a person who, although not an officer of the Corporation, is acting under a delegation of the Corporation.