What solidified that as German policy was the 1940 IRA arms raid on the Magazine Fort, in Dublin. The event gave an entirely misleading positive impression to the Nazi authorities about the IRA's capabilities. Another factor was the failure of the incompetent German agent, Hermann Görtz, to relay back comprehensive details on his meeting with IRA CS, Stephen Hayes, after discussing Plan Kathleen. Due to those factors, the German authorities had to learn the hard way, through failed missions, that the IRA at that point in time was far less militarily capable than they had hoped.