"The container the suspects called 'the treatment room' contained a dental chair with straps to lash one's arms to its armrests and handcuffs at its footrest."

"Bags were also found in the so-called torture chamber, the statement said, containing 'pruning shears, loppers, branch saws, scalpels, pliers, extra handcuffs, finger cuffs, tape, balaclavas and black cotton bags that can be pulled over the head.'... According to the prosecutor's office, amid their investigation police intercepted encrypted phone messages, some of which contained photos of the containers and the dental chair. 'If I have him on the chair more will come,' one of the messages said, according to the National Prosecutor's Office, 'but the dog is missing.'"

From "Dutch police discover 'underworld' prison with torture chamber in shipping containers" (UPI).