In 2015, Mykola Martynenko voluntarily resigned his parliamentary mandate to prove his innocence through the court. He also drew attention to the bias of the Ukrainian investigation and denied the charges.

In 2020, a Swiss court of first instance found Mykola Martynenko and Pavel Skalenko guilty, holding that the charge was essentially established.

The decision was appealed.

The Appellate Division of the Federal Criminal Court concluded that it had not been legally proven that there was no legal consideration by the Panamanian offshore company of the commission payments made, nor Martynenko's abuse of procurement procedures, nor any damage caused to the Ukrainian state or to the Czech ŠKODA JS. Accordingly, did not recognize the criminal origin of the funds transferred through Swiss banking relationships.

According to the court's release, the Appellate Chamber came to this conclusion after collecting additional evidence, in particular after questioning key persons related to the predicate (former functionaries of the operator of the Ukrainian nuclear power plant NAEK ENERGOATOM and its subordinate department ATOMCOMPLET, as well as an employee of ŠKODA JS who signed the contract). The court also found that there was no evidence of any relevant damage caused to NAEK ENERGOATOM or ŠKODA JS Ltd. As a consequence, the facts of money laundering in Ukraine and the Czech Republic were not legally proven, so the court issued an acquittal verdict for both defendants.

"The parties have the right to appeal against the decision of the Appeals Chamber, which is not yet final, to file a criminal appeal with the Federal Supreme Court after receiving a full written statement of reasons. The presumption of innocence still applies to the accused", the court said in a press release.