What is the primary role of an affidavit in Queensland civil procedure?

The primary role of an affidavit in Queensland civil procedure is to provide sworn written evidence to support a party's case. An affidavit is a formal document that contains a statement of facts, which the individual (the deponent) swears to be true under oath. This type of evidence is crucial in legal proceedings as it allows parties to present their claims or defenses in writing, facilitating a clear and organized presentation of facts for the court to consider.

Affidavits can be used in various stages of litigation, including pre-trial motions and hearings, in order to establish the background of a case or to support specific arguments. Their sworn nature adds a level of credibility and accountability since the deponent may face legal repercussions for providing false statements.

The other options denote important aspects of civil procedure but do not encapsulate the primary role of an affidavit. While outlining costs associated with a trial, providing witness summons, or documenting motions are elements of the legal process, these functions do not reflect the fundamental purpose of affidavits as evidentiary tools in supporting the case being presented.