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

The Integrity Standards state that "A political party, its officials, candidates, members agents and supporters must not use official State, Provincial, Municipal or other public resources, facilities,or personnel, including public media for campaign purposes, except for those lawfully, transparently and equitably allocated to a political party. The definition of public resources includes vehicles, vessels and means of communication.   in addition MPs who are standing for election must not "sanction or promise grants or payments out of constituency funds as part of an election campaign".  The SI Political Parties Commission is responsible for  investigation "into the affairs of a political party for the purpose ascertaining any breach of the Act" 

Source: Section 8,  Political Parties Integrity Standards 2014. 

Source: Article 6 (1)(f), Solomon Islands Poltical Parties Integrity Act, 2014. 

The Solomon Islands Political Parties Commission has primary responsibility for overseeing compliance with existing rules against abuse of State resources.