The most interesting use of police dogs concerned scent identification, a method analyzed by Dutch and other researchers, but adapted by the unique paranoia of the Stasi. As early as 1973, the Stasi began collecting smell samples of a large number of citizens. Sometimes this was done with a special chair that the subject was asked to sit on during a visit to the police station. The chair had a dust cloth on top of the seat that was clamped into place by a removable frame. The subject had to sit in the chair for ten minutes, but after the interrogation was over, the dust cloth was removed and stored in a glass jar.

Sometimes Stasi officials did not bother with being subtle and merely told subjects to put a cloth under their armpits or even under their pants in the groin area. The cloth was carefully handled by tweezers in an effort not to allow contamination by other human scents.

In accordance with our invention, the customers are provided with seats and if desired footrests moving in a continuous manner along with a table or like surface, the different courses being placed upon the table at definite positions in the travel of the table so that when the traverse of any particular seat is completed, the occupant has completed his meal and may move to a seat in a lounge or the like to rest and/or to finish his meal with a coffee or the like which may be supplied just before the said traverse is completed.