Four referees – Lutz Michael Fröhlich, Olaf Blumenstein, Manuel Gräfe, and Felix Zwayer – went to officials of the German Football Association (Deutscher Fußball-Bund, DFB) with their suspicions about Hoyzer.
Milan Šapina, operator of the Café King sports betting agency and his brother Philip were taken into custody, along with Hertha BSC players Alexander Madlung, Nando Rafael and Josip Šimunić.
As witnesses against Hoyzer, the Berlin referees Lutz Michael Fröhlich and Manuel Gräfe were immediately relieved of their officiating responsibilities for their own safety, being replaced by Franz-Xaver Wack and Torsten Kinhöfer.
Former star player and head of Germany's 2006 FIFA World Cup Organizing Committee Franz Beckenbauer expressed opposition to the idea of employing professional officials feeling that the current system has worked quite well and is solidly supported by the excellent training program run by the DFB.
While World Cup Organising Committee chief Franz Beckenbauer expressed his concern, government spokesman Thomas Steg acknowledged the efforts of the DFB in acting in a committed manner in quickly dealing with the issue.
Interior Minister Otto Schily also encouraged all game officials to support the DFB and public prosecutor's office in quickly addressing any suspicions raised.
While Hoyzer had drawn the suspicion of a number of his fellow officials sometime earlier, it was the 21 August 2004 match between SC Paderborn 07 and Hamburger SV that precipitated the complaint to the DFB against him.