15. (1) Any person authorized by the Minister for any purpose relating to the administration or enforcement of this Act may at all reasonable times enter into any premises or place where any business is carried on or any property is kept or anything is done in connection with any business or where records are or should be kept pursuant to this Act, and, (a) audit or examine the books and records and any account, voucher, letter, telegram or other document that relates or may relate to the information that is or should be in the books or records or the amount of any tax credit paid or payable under the Income Tax Act (Ontario) in connection with this Act; (b) examine any property, process or matter, an examination of which may, in his or her opinion, assist the person in determining the accuracy of any application required by this Act or ascertaining the information that is or should be in the books and records or in the application, or the amount of any tax credit under the Income Tax Act (Ontario) in connection with this Act; and (c) require any person on the premises to give him or her all reasonable assistance with the audit or examination and to answer all questions relating to the audit or examination either orally or, if so required, in writing, on oath or statutory declaration and, for that purpose, require the person to attend at the premises or place with him or her.  R.S.O. 1990, c. O.20, s. 15 (1). Demand for information (2) The Minister may, for any purpose relating to the administration and enforcement of this Act, by registered letter or by a demand served personally, require from any depositary or from any officer, director or agent thereof, or from any other person, (a) any information or additional information or any required form; or (b) production, or production on oath or affirmation, of books, letters, accounts, invoices, statements, financial or otherwise, or other documents, within such reasonable time as is stipulated in the letter or demand.  R.S.O. 1990, c. O.20, s. 15 (2); 1997, c. 19, s. 18 (6). Copies (3) Where a book, record or other document has been examined or produced under this section, the person by whom it is examined or to whom it is produced or any officer of the Ministry may make, or cause to be made, one or more copies thereof and a document purporting to be certified by the Minister or by a person thereunto authorized by the Minister to be a copy made pursuant to this section is admissible in evidence and has the same probative value as the original document would have had if it had been proven in the ordinary manner.  R.S.O. 1990, c. O.20, s. 15 (3); 1994, c. 17, s. 123 (4). Inquiry (3.1) The Minister may, for any purpose relating to the administration or enforcement of this Act, authorize any person to make whatever inquiry the Minister considers necessary to assist the Minister and the Ministry in the proper administration or enforcement of this Act.  1994, c. 17, s. 127. Duty to comply (4) No person shall hinder, molest or interfere with any person doing anything that he or she is authorized by this section to do or prevent or attempt to prevent any person doing any such thing and, despite any other law to the contrary, every person shall, unless he or she is unable to do so, do everything he or she is required by this section to do.  R.S.O. 1990, c. O.20, s. 15 (4). Administration of oaths (5) Any officer or employee of the Ministry who is authorized by the Minister may administer oaths and take or receive affidavits, declarations or affirmations for the purpose of or incidental to the administration or enforcement of this Act, and every person so authorized has, in respect of any such oath, affidavit, declaration or affirmation, all the powers of a commissioner for taking affidavits.  R.S.O. 1990, c. O.20, s. 15 (5); 1994, c. 17, s. 123 (4).