Section 17: Duly authenticated documents to be received in evidence.

(1) In any proceedings under this Act, any of the following documents, if duly authenticated, shall be received in evidence without further proof, namely-
(a) any warrant issued in a country other than Nigeria;
(b) any deposition or statement on oath or affirmation taken in any such country, or a copy of any such deposition or statement;
(c) any certificate of conviction issued in any such country.
(2) For the purposes of this Act, any such document as is mentioned in subsection (1) of this section shall be taken to be duly authenticated-
(a) if, apart from this section, it is authenticated in any manner for the time being provided by law; or
(b) if it complies with the requirements of subsection (3) of this section and is authenticated by the oath or affirmation of some witness or by being sealed with official seal of a minister of state of the country in which it was issued or taken.
(3) The requirements of this subsection are as follows-
(a) a warrant must purport to be signed by a Judge, magistrate or officer of the country in which it was issued;
(b) a document such as is mentioned in subsection (1) (b) of this section must purport to be certified under the hand of a Judge, magistrate or officer of the country in which it was taken to be the original or a copy, as the case may be, of the document in question;
(c) a certificate of conviction must purport to be certified by a Judge, magistrate or officer of the country in which the conviction is stated to have taken place.
(4) For the purposes of this Act, judicial notice shall be taken of the official seals of ministers of state of countries other than Nigeria.