An affidavit is a written statement confirmed on oath. It is used in court proceedings (as evidence), probate applications, statutory declarations, and various administrative processes. Making a false statement in an affidavit constitutes perjury.

• Must be sworn/affirmed before an authorised person (solicitor, commissioner for oaths, notary)
• Sworn on the Bible or by affirmation (for those who object to religious oath)
• False statement = perjury — criminal offence
• For court: check specific court requirements for format and content
• Statutory Declaration: alternative to affidavit for non-court purposes

Legal reference: Perjury Act 1911; Oaths Act 1978; Administration of Justice Act 1985