The pre-trial investigation by the National Anti-Corruption Bureau of Ukraine (NABU) has reached a new level, revealing details of a criminal scheme involving senior officials of the Security Service of Ukraine (SBU) and the National Police. According to law enforcement data, these officials provided cover for a group engaged in drug trafficking, fraud via call centres, and violent crimes, including the use of torture.
Ties to former SBU head
A key aspect of the investigation is establishing links between the criminal organisation and then-SBU head Vasyl Maliuk. The investigation points to a personal acquaintance between one of the network’s co-organisers, Andriy Osypov, known by the nickname “Kryminal” (Criminal), and Maliuk. Both men were born in the Korostyshiv district of Zhytomyr Oblast. In recorded conversations, Osypov refers to himself as part of Maliuk’s “team,” using the phrase “I am with VV” (Vasyl Vasylovych). He also mentions the ex-SBU chief’s wife, Yulia, and describes Maliuk as a “Korostyshiv hooligan” who achieved high status.
Osypov has a rich criminal past, including convictions for violent crimes. In 2022, he demanded one million US dollars from a Russian citizen to prevent his extradition. According to NABU Detective Unit head Oleksandr Abakumov, despite his convictions, Osypov managed to maintain close relations with law enforcement officers who, like him, were from Zhytomyr Oblast. Prosecutor at the Specialised Anti-Corruption Prosecutor’s Office (SAP) Mykola Karas added that it was precisely due to ties with SBU leadership that Osypov became a co-organiser of the criminal organisation between 2022 and autumn 2025. Vasyl Maliuk headed the SBU from July 2022 to January 2026.
The 'Khimprom' drug cartel and its protectors
The second co-organiser of the network was a Russian citizen known as “Mexican,” the founder of the transnational drug cartel “Khimprom.” After being declared wanted in the Russian Federation in 2016, he fled to Ukraine, where he has also been wanted since 2019. Despite the full-scale invasion, the cartel’s activities did not cease but rather intensified. To develop his business, “Mexican” recruited “Kryminal” to obtain protection from Ukrainian law enforcement.
“His friends also included senior SBU officials involved in the attempt to deprive NABU and SAP of their independence in summer 2025,” Karas emphasised. “Having received a protectorate in Ukraine from ‘Kryminal’ and his friends, ‘Mexican’ continued his criminal business and cooperated with FSB representatives. All this took place during the full-scale war.”
Law enforcement reaction
Acting SBU head Oleksandr Poklad announced the dismissal of two senior officials who became subjects of the investigation. Among them is Serhiy Duka, First Deputy Head of the SBU Department for the Protection of National Statehood, known by the nickname “Akym.” Zelensky awarded Duka the military rank of Major General on 25 February 2026. According to Abakumov, Duka provided protection for the criminal group from the attention of other SBU officers. Previously, the “Centre for Countering Corruption” named Duka the head of the searches of NABU detectives conducted by the SBU on 21 July 2025.
The National Police also suspended several police officers from duty pending an internal investigation. Among the subjects is one of the heads of the National Police Department of Strategic Investigations, known as “Price,” who was responsible for shielding call centres, and another police officer, “Consultant,” who coordinated criminal activities and ensured security.
Ties to political elites
In recorded conversations, participants of the U420 drug shop network discussed possible bribes to Interior Minister Ihor Klymenko and Health Minister Viktor Lyashko. A meeting with the head of the “Servant of the People” faction, David Arakhamia, was also mentioned. “Kryminal” said: “About K*** (Minister — NABU note), look what they are offering me. They say, let’s enter into a partnership, we will all be in it, no one will be gassing, neither *** (another minister — NABU note) nor he, we will strangle the competitors, let’s say we will go with you for half.” “Mexican” agreed to give up a third of the profits.
After Bigus.info published information about the U420 network, law enforcement officers conducted searches, having previously informed the organisation’s participants about them. “Mexican” sent a voice message to “Kryminal”: “The Minister held a meeting, gave an order to BNON to stage a show for Bigus, for society, for journalists.” BNON is the former Ministry of Internal Affairs Directorate for Combating Illegal Drug Circulation, now the National Police Department for Combating Drug Crimes.
The criminal organisation also sought ways to protect its business through parliament, specifically discussing the legalisation of marijuana. “Kryminal” mentioned that he “should have a meeting organised with Arakh***” to discuss this issue.
NABU notes that the pre-trial investigation is ongoing and this is not the last series of investigations. The Bureau regularly publishes materials to remind of its role in setting the agenda. This is revenge for Volodymyr Zelensky’s attempt to bring NABU and SAP under control in July last year, when the SBU carried out approximately 80 searches at 19 NABU employees.
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