What is an affidavit used for in legal proceedings?

An affidavit serves as a written statement that is confirmed by the oath or affirmation of the person making it. This legal document is typically used to present facts in court, providing a level of credibility because the person is swearing that the content is true to the best of their knowledge. The purpose of an affidavit is to create a record that can be used in legal proceedings, often supporting motions or actions taken in a case.

By requiring the affiant to take an oath, the legal system aims to ensure accuracy and integrity in the facts presented. This evidentiary tool is paramount where a witness cannot appear in court, or when the affiant's written testimony is more convenient for the case at hand, thereby streamlining the process and reducing the need for live testimony in less critical matters.