An affidavit (/ˌæfᵻˈdeɪvᵻt/ A-fə-DAY-vət) is a written sworn statement of fact voluntarily made by an affiant or deponent under an oath or affirmation administered by a person authorized to do so by law. Such statement is witnessed as to the authenticity of the affiant's signature by a taker of oaths, such as a notary public or commissioner of oaths. The name is Medieval Latin for he/she has declared upon oath. An affidavit is a type of verified statement or showing, or in other words, it contains a verification, meaning it is under oath or penalty of perjury, and this serves as evidence to its veracity and is required for court proceedings. It is done with the help of court, with a stamp paper. Affidavits may be written in the first or third person, depending on who drafted the document. If in the first person, the document's component parts are typically as follows:
If an affidavit is notarized or authenticated, it will also include a caption with a venue and title in reference to judicial proceedings. In some cases, an introductory clause, called a preamble, is added attesting that the affiant personally appeared before the authenticating authority.
On 2 March 2016, the High Court of Australia held that the ACT Uniform Evidence Legislation is neutral in the way sworn evidence and unsworn evidence is treated as being of equal weight.
In Indian law, although an affidavit may be taken as proof of the facts stated therein, the Courts have no jurisdiction to admit evidence by way of affidavit. Affidavit is treated as "evidence" within the meaning of Section 3 of the Evidence Act. However, it was held by the Supreme Court that an affidavit can be used as evidence only if the Court so orders for sufficient reasons, namely, the right of the opposite party to have the deponent produced for cross-examination (Khandesh Spg & Wvg Mills CO. Ltd. Vs Rashtriya Girni Kamgar Sangh, citation 1960 AIR571, 1960 SCR(2) 841). Therefore, an affidavit cannot ordinarily be used as evidence in absence of a specific order of the Court.