Environment Protection Act 1993

It is not a reasonable excuse for a person to fail to answer a question or to produce, or provide a copy of, a document or information as required under this Act on the ground that to do so might tend to incriminate the person or make the person liable to a penalty.

If compliance by a natural person with a requirement under this Act might tend to incriminate the person or make the person liable to a penalty, then—

in the case of a person who is required to produce, or provide a copy of, a document or information—the fact of production, or provision of a copy of, the document or the information (as distinct from the contents of the document or the information); or

in any other case—the answer given in compliance with the requirement, is not admissible in evidence against the person in proceedings for an offence or for the imposition of a penalty (other than proceedings in respect of the making of a false or misleading statement).