All criminal proceedings investigated by the Detectives of the National Anti-Corruption Bureau of Ukraine (NABU) have one thing in common: they relate to top-level officials that were previously immune. As the result of this all of the Bureau’s cases are surrounded with speculations. This was stressed by the NABU Director Artem Sytnyk at the hearings of the Verkhovna Rada Committee on Corruption Prevention and Counteraction, held on November 3, 2017. "Recently, the attention of the public has been focused on the investigation of the so-called "backpacks’ case". The actions of the NABU were criticized due to alleged illegality of the evidence. Therefore, I want to say that the video, which became public and was passed to the NABU for examination, is valid and admissible evidence in this case. But it is not the only evidence," emphasized Artem Sytnyk.
On October 19, 2017, the Detectives of the National Anti-Corruption Bureau of Ukraine (NABU) prevented an attempt of Member of Parliament (MP) Boryslav Rosenblat to take abroad materials of the pre-trial investigation of the so-called "amber case". The NABU Detectives also ensured his participation in the court hearing as of prolonging his preventive measure.