On June 22, 2020, the National Unit arrested six men suspected of preparing kidnappings and hostage-taking in the criminal environment. In a shed the police found seven sea containers. Six of them were arranged as a cell in which people could be tied up and one container was intended as a torture chamber. The police also found a second shed in Rotterdam, which was probably intended as a base for criminals.

"Last week, we released the investigation to cryptocommunication provider Encrochat. In this investigation, the police read live for a long time with chat messages that criminals sent each other. That provided a wealth of information. "

In the messages, photos were sent of a warehouse and a sea container with a dental chair, with straps on the armrests and footrest. There was talk of kidnapping and torture: "if I have him on the chair more will come", "but that dog is missing." The warehouse was designated as “ebi” (which is the Extra Secure Facility in Vught) and “treatment room”. The upcoming kidnappings seemed to be prepared with great precision: there were several "teams" and an "OT" (observation team), and weapons, police clothes, vans, stop signs and bullet proof vests were arranged.

The spaces in the containers were finished with sound-insulating plates and heat-insulating foil. Handcuffs were attached to the ceiling and floor in each of the cells. Furthermore, there was only a chemical toilet. A camera was mounted in the corner to keep a clear view of the situation in each cell.

One of the sea containers contained several sets of police clothing, bulletproof vests and police lightbars. Another shipping container held bags of items believed to be used to torture or at least pressure victims. Police found pruning shears, loppers, branch saws, scalpels, pliers, handcuffs, fingercuffs, tape, balaclavas and black cotton bags that can be pulled over the head. During the search of a house in Rotterdam, 24 kilos of MDMA were also found.

The warehouse also had three stolen vans and two fast BMWs. A sitting and sleeping area was set up in an adjacent room, probably for guards. In the hangar in Rotterdam we found seven small arms and an automatic assault rifle, a Chinese variant of the Kalashnikov AK-47. A total of 25 weapons were found among the suspects.