The case of a suspect on abuse of office, which resulted in grave consequences, of the chief of the State Fiscal Service, Roman Nasirov, could provoke a political crisis in Ukraine, Volodymyr Fesenko, chairman of the Penta Center for Applied Political Studies, said.

"The case is explosive and it detonate a political crisis in Ukraine." Most likely, at least in the coming months, it will be one of the main factors in the development of the political situation," Fesenko said in a comment to Interfax-Ukraine on Tuesday morning.