 In the same year came Jordan's promotion to SA-Obergruppenführer.On 6 June 1932, he wrote to Gregor Strasser concerning the alleged Jewish origins of Reinhard Heydrich, the head of the Sicherheitsdienst, the intelligence service of the SS.Strasser passed Jordan's letter to the NSDAP's chief racial inverstigator, Dr Achim Gercke, who dismissed the allegation.