On May 3rd, 2024, a large article about the Jung+Theuergarten engineering company appeared in the Siegener Zeitung. Olaf Theuergarten and Rolf Jung have turned to the press because they feel let down by the Siegen police and the Siegen public prosecutor's office. A business partner caused six-figure damage through embezzlement. In the 15 months of investigation by the Siegen public prosecutor's office and the Siegen police, hardly any usable results were produced. Olaf Theuergarten and Rolf Jung also do not recognize a goal-oriented structure in the investigative work. Therefore, the two have now filed supervisory complaints about the head of the investigating criminal police and the senior public prosecutor.