Explain the provisions of "Procedure for inquiry into certain Agreements and Dominant Position of Enterprise" under Section 26 of the Competition Act, 2002.

Section 26 of the Competition Act deals with procedure for Inquiry into Certain Agreements and Dominant Position of Enterprise. It states that: On receipt of a reference from the Central Government or a State Government or a statutory authority or on its own knowledge or information received under section 19, if the Commission is of the opinion that there exists a prima facie case, it shall direct the Director General to cause an investigation to be made into the matter: It may be noted that if the subject matter of an information received is, in the opinion of the Commission, substantially the same as or has been covered by any previous information received, then the new information may be clubbed with the previous information. Where on receipt of a reference from the Central Government or a State Government or a statutory authority or information received under section 19, the Commission is of the opinion that there exists no prima facie case, it shall close the matter forthwith and pass such orders as it deems fit and send a copy of its order to the Central Government or the State Government or the statutory authority or the parties concerned, as the case may be. The Commission may not inquire into agreement referred to in section 3 or conduct of an enterprise or group under section 4, if the same or substantially the same facts and issues raised in the information received under section 19 or reference from the Central Government or a State Government or a statutory authority has already been decided by the Commission in its previous order. The Director General shall, on receipt of direction under sub-section (1), submit a report on his findings within such period as may be specified by the Commission. If, after consideration of the report of the Director General referred to in sub-section (3), the Commission is of the opinion that further investigation is required, it may direct the Director General to investigate further into the matter. The Director General shall, on receipt of direction under sub-section (3A), investigate the matter and submit a supplementary report on his findings within such period as may be specified by the Commission.