On January 30, 2026, the HACC Appeals Chamber upheld the acquittal in the case of Judge Tetiana Denysiuk, who was charged with issuing an unlawful decision in 2016 in favor of Karpatnadrainvest, a company linked to Oleksandr Onyshchenko.

The HACC first acquitted the judge in May 2021, finding that the prosecution’s case was based solely on assumptions. In December 2022, the HACC Appeals Chamber partially granted the prosecutor’s appeal, overturned the verdict, and ordered a retrial.

In November 2024, the HACC again acquitted Judge Denysiuk, citing the prosecution’s failure to prove the elements of a criminal offense. The prosecutor appealed, and the case returned to the HACC Appeals Chamber for another review.

Denysiuk, a judge of the Economic Court of Kharkiv Region, is charged with issuing an unlawful ruling in 2016 in favor of Karpatnadrainvest, a company linked to Oleksandr Onyshchenko. According to investigators, the judge reduced penalties by UAH 40 million, postponed debt collection, and ordered the transfer of seized gas, allegedly exceeding her powers.

Karpatnadrainvest featured in Onyshchenko’s “gas schemes,” with estimated losses of UAH 3 billion. In 2024 the HACC sentenced Onyshchenko in absentia to 15 years’ imprisonment with confiscation of property, but the HACC Appeals Chamber sent his case back for a new trial.

During the repeat appeal hearing at the HACC, the prosecutor asked the court to sentence Denysiuk to five years’ imprisonment, arguing that she accepted a counterclaim without payment of a court fee and that her actions were intentional rather than a mistake.

The defense insisted there was no crime and no socially dangerous consequences, arguing that the prosecution’s position rests on assumptions, indirect evidence, and manipulation.