What institution(s) has the power to impose non-criminal sanctions for campaign finance infractions?
Tonga
Answer
Campaign finance infractions entail only criminal sanctions or penalties (please refer to section ELECTION-RELATED CRIMINAL OFFENCES).
Source
Electoral Act 1989
PART IV- ELECTION OFFENCES
http://legislation.to/Tonga/DATA/PRIN/1989-022/ElectoralAct1989.pdf