An ex-aide and now wife of former Czech Prime Minister Petr Necas was found guilty of abuse of power on Monday in a major scandal that exposed their extramarital affair and toppled the government a year ago.

Jana Necasova, who Necas admitted to having an affair with while she was head of his office, was found guilty of illegally ordering the military intelligence service in 2012 to follow Necas' then-wife, Radka.

Nacas, who said he knew nothing about the spying, stepped down in June 2013 amid suspicion of graft, abuse of power and improper ties with businessmen. He was in divorce proceedings with Radka at the time and has since married his former aide.