Research in the archives also showed a number of errors. The findings were partial only, and not conclusive; more volumes were provided to aid the analysis. When Hagen reported back to the "Stern" management, an emergency meeting was called and Schulte-Hillen demanded the identity of Heidemann's source. The journalist relented, and provided the provenance of the diaries as Kujau had given it to him. Harris describes how a bunker mentality descended on the "Stern" management as, instead of accepting the truth of the 's findings, they searched for alternative explanations as to how post-war whitening agents could have been used in the wartime paper. The paper then released a statement defending their position which Harris judges was "resonant with hollow bravado". While Koch was touring the US, giving interviews to most of the major news channels, he met Kenneth W. Rendell, a handwriting expert in the studios of CBS, and showed him one of the volumes. Rendell's first impression was that the diaries were forged. He later reported that "everything looked wrong", including new-looking ink, poor quality paper and signatures that were "terrible renditions" of Hitler's. Rendell concludes the diaries were not particularly good fakes, calling them "bad forgeries but a great hoax". He states that "with the exception of imitating Hitler's habit of slanting his writing diagonally as he wrote across the page, the forger failed to observe or to imitate the most fundamental characteristics of his handwriting." On 4 May fifteen volumes of the diaries were removed from the Swiss bank vault and distributed to various forensic scientists: four went to the and eleven went to the Swiss specialists in St Gallen. The initial results were ready on 6 May, which confirmed what the forensic experts had been telling the management of "Stern" for the last week: the diaries were poor forgeries, with modern components and ink that was not in common use in wartime Germany. Measurements had been taken of the evaporation of chloride in the ink which showed the diaries had been written within the previous two years. There were also factual errors, including some from Domarus's that Kujau had copied. Before passing the news to Stern, the had already informed the government, saying it was "a ministerial matter". The managers at "Stern" tried to release the first press statement that acknowledged the forensic findings and stated that the diaries were forged, but the official government announcement was released five minutes before "Stern"'s.