Provisions of the Law on General Administrative Procedure related to the appellate decisions of second instance body shall be applied to the procedure before the Commissioner, unless specified differently by this Law. Article 24 The Commissioner shall reach a decision promptly and within 30 days from the submission of the complaint at the latest, upon giving the public authority and, if necessary the applicant, the opportunity to reply in writing. The Commissioner shall dismiss a complaint that is inadmissible, overdue or filed by an unauthorized person. The public authority shall prove it has acted in accordance with its obligations set forth in this Law. Commissioner Decisions on Measures to Promote Transparency of Work Article 25 Upon receipt of a request or ex officio, the Commissioner shall reach the decision establishing that a public authority has not fulfilled its obligations set forth in this Law, with the exception of public authorities referred to in Para 2 of Article 22 of this Law, and order the measures the authority is to take to fulfill them, upon giving the opportunity to the authority to reply in writing. The request referred to in Para 1 of this Article cannot be submitted in cases when this Law foresees the right to complaint. Inquiry by the Commissioner Article 26 The Commissioner shall undertake actions to determine the facts necessary for reaching the decision referred to in Articles 24 and 25 of this Law. In order to determine the facts referred to in Para 1 of this Law, the Commissioner shall be allowed insight in every information medium this Law applies to. Legal Remedies against Commissioner’s Decisions Article 27 An administrative dispute complaint may be lodged against a Commissioner’s decision. Obligatory character of Commissioner Decisions and Conclusions Article 28 The decisions and conclusions of the Commissioner shall be obligatory. The enforcement of the decisions and conclusions of the Commissioner shall be procured by the Government of the Republic of Serbia if necessary.