On May 28, 2026, the HACC set a preventive measure for retired Supreme Court judge Oleksandr Prokopenko — bail of UAH 900,000, as reported by Sudovyi Reporter.

The following obligations were also imposed:

• appear when summoned by a detective, prosecutor, or court 
• refrain from communicating with other suspects in the case and witnesses
• surrender her international passport.

According to the investigation, Prokopenko accepted $50,000 in unlawful benefits from businessman Kostiantyn Zhevaho in prior agreement with former Supreme Court Chairman Vsevolod Kniaziev.

The prosecutor stated that Prokopenko is charged under Article 368(4) of the Criminal Code and presented covert investigative action records and Kniaziev's testimony in support of the suspicion. The prosecution had sought bail of UAH 10 million.

At the hearing, the prosecutor quoted from Kniaziev's examination, in which Kniaziev stated that in March 2023 he had agreed to accept unlawful benefits from Zhevaho for himself and certain Grand Chamber judges in exchange for a ruling in the Poltava MPW case. According to Kniaziev, he discussed with Prokopenko the need to overturn the appellate court's ruling and remit the case for re-examination, and told him that such a decision would be “rewarded.” Prokopenko, Kniaziev claims, said he would think about it.

The Grand Chamber ultimately ruled in favor of companies linked to Zhevaho. Prokopenko issued a dissenting opinion on the remittal question, though during deliberations he voted with the majority. After the ruling, Kniaziev says he handed Prokopenko a black folder containing $50,000 in cash and thanked him for the decision. Kniaziev claims Prokopenko expressed surprise, as he had supported a different position, but Kniaziev explained that “the people” were grateful to all the judges. It is also worth noting that back in 2023, $2,300 in marked bills was found at Prokopenko's home.

The defense disputed the prosecution's account. Counsel noted that Prokopenko had a conflict with Kniaziev and was the only judge who refused to vote for him as Supreme Court Chairman. He argued that the only evidence against Prokopenko is Kniaziev's testimony, which he called unreliable. The defense asked the court to deny any preventive measure.

Grand Chamber judge Zhanna Yelenina, Supreme Court judges Iryna Hryhorieva and Ihor Zhelieznyi, and retired judge Oleksandr Prokopenko are all suspected of accepting unlawful benefits in exchange for ruling in the interests of Finance and Credit Group owner Kostiantyn Zhevaho, who is suspected of bribing Vsevolod Kniaziev.