Further evidence will only be allowed in particular circumstances in civil appeals in the Queensland Court of Appeal or the Federal Court of Australia.
As a general rule and in order to be admissible, the proposed evidence in a trial affidavit must be relevant. That means it must tend to prove or disprove a fact in issue on the pleadings.
If you are acting in a case in which there are no pleadings, the affidavit material is the only opportunity to present your client’s version of the facts to the court.