This Swiss case mainly involved rapping phenomena, centred around a 13 year old boy. The boy had lived with elderly foster parents since the age of five. There were also some examples of inexplicable object movements including a cushion that rose vertically, and then moved slowly through the air towards the kitchen door.  

There were several witnesses to the events who recorded that on occasions the knocking sounds were so intense that the couch and the floor vibrated as though a pneumatic drill was being used in the vicinity. The Schleswig track was recorded as 16-bit stereo at 44100Hz with an uncompressed file size of 21.4 MB. In total it lasted for just over two minutes and was again taken from the “Okkulte Stimmen” CD referred to above.