19.—(1) None of the following is admissible as evidence against a person in any criminal or other proceedings, except proceedings in relation to an offence against section 18:

(a) a statement or admission made by the person to a commission or to a person appointed under section 8;

(b) a document given or sent to a commission pursuant to a direction or request of the commission to the person;

(c) a document specified in an affidavit of documents made by the person and given to a commission pursuant to a direction or request of the commission.

(2) Subsection (1) is not to be taken to limit in any way the application of section 45(3) to evidence received by a commission and made available to a tribunal under section 45(1).