61. Is it specified that a particular institution(s) is responsible for overseeing compliance with existing rules against abuse of state resources?

"Control over financing of political entities and election campaigns shall be performed by the Agency for Prevention of Corruption (hereinafter referred to as: the Agency) established in accordance with a special law."

Article 5(1), Law on Financing Political Entities and Election Campaigns, 2014 - last amended on December 27, 2019.

Yes: the Agency for Prevention of Corruption (APC).