Tkachenko Oleh Volodymyrovych

Judge of the High Anti-Corruption Court

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Ukrainian judge, current member of the High Anti-Corruption Court of Ukraine

Tkachenko has been administering justice at the High Anti-Corruption Court since the institution's establishment in 2019. He has many years of experience within the legal system, having previously served as a judge in commercial courts of various levels. At the HACC, Tkachenko specializes in high-profile corruption and economic cases involving top officials, politicians, and oligarchs, performing functions both as an investigative judge and as the presiding judge in substantive court hearings.

Lenient rulings and controversies

In the fall of 2023, Judge Tkachenko refused to grant motions filed by the Specialized Anti-Corruption Prosecutor's Office (SAPO) and the National Anti-Corruption Bureau of Ukraine (NABU) to seize assets and property of an oligarch, and he also released from custody one of the key suspects in the case, Yaroslav Luhovyi. The judge has repeatedly closed high-profile cases citing the expiration of investigation deadlines (so-called "Lozovyi amendments"). Notably, in June 2026, the HACC Appeals Chamber overturned a decision made by Tkachenko to close a case involving the embezzlement of UAH 11.8 million from Ukrzaliznytsia, deeming his findings premature and remanding the case for a new hearing. In May 2025, Tkachenko issued a controversial ruling granting a motion by defense attorneys to disqualify presiding Judge Nataliya Movchan from the case over alleged "failure to provide conditions for reviewing case materials." This move provoked outrage among activists, who called the justification contrived, noting that the defense had participated in the case for over a year.

Publications about the person

Scanned Telegram publication

The Trukhanov and Krayan Factory Case: NACAC began considering the case from the start The High Anti-Corruption Court has begun reconsidering the case of former Odesa mayor Hennadiy Trukhanov and the Krayan factory from the beginning. The prosecutor has already read the indictment. The defense side again began delivering opening statements, but due to lack of time they will continue next time. The reason is the replacement of a panel member. Instead of Tetiana Krykliva, who is on extended leave,...

Scanned Telegram publication

The High Anti-Corruption Court reduced the amount of bail for Tymoshenko by 125 times The High Anti-Corruption Court partially granted the defense’s motion for People's Deputy Yulia Tymoshenko to change her preventive measure and reduced the bail amount to 266,2 thousand UAH. Previously the HACC imposed bail on Tymoshenko in the amount of 33,3 million UAH. That is, the bail was reduced by 125 times or by 99,2%. Now the difference, approximately 33 million UAH, will be returned to the sureties. I...