3. (1) Every diplomatic or consular officer of Bangladesh exercising his functions in any foreign country or place, or any such diplomatic or consular officer of a foreign country as is in writing authorised in this behalf by the Government in relation to any foreign country or place, may in that country or place administer any oath or affirmation and take any affidavit and also do any notarial act which any notary public may do within the territories of Bangladesh, and every such oath, affirmation, affidavit and notarial act administered, sworn or done by or before any such person shall be as effectual as if duly administered, sworn or done by or before any lawful authority in any part of Bangladesh. (2) Any document purporting to have affixed, impressed, or subscribed thereon or thereto the seal and signature of any person authorised by this section to administer an oath in testimony of any oath, affirmation, affidavit, or act being administered, sworn or done by or before him, shall be admitted in evidence without proof of the seal or signature being the seal or signature of that person, or of the official character of that person.