Chief of the Abwehr Wilhelm Canaris appointed Colonel Hansen as his successor as head of military counterintelligence before his removal from office in February 1944.
Finally, Canaris, before his resignation in February 1944, appointed Georg Hansen to succeed him as Head of Military Intelligence.
Probably under the influence of Beck, Hansen's conversion took himself to the opposition by 1938; the official review of the crimes of the Nazi Regime might have led him to finally join the Resistance.
In addition, it was planned to have him, on the behalf of Beck, who was assigned as interim Head of State, to negotiate with General Dwight D. Eisenhower for a separate accord of peace with the Western Powers.
Because of strong disagreements with Stauffenberg about the political plans after the attack, Hansen decided on short notice against personal participation and drove on 18 July to Michelau for the baptism of his youngest daughter.
On 22 July the Gestapo chief, Heinrich Müller, summoned him to the RSHA, where Hansen was arrested in the waiting room.
On 4 August he was given by the Ehrenhof (Court of Honour), formed two days earlier, a dishonourable discharge from the Wehrmacht, so that the court-martial (Reichskriegsgericht) was no longer responsible for the sentencing.
On the day of the arraignment, 10 August 1944, Georg Hansen, as well as Erich Fellgiebel, Alfred Kranzfelder, Fritz-Dietlof Graf von der Schulenburg and Berthold Schenk Graf von Stauffenberg were, in a show trial [3] at the Volksgerichtshof under President Roland Freisler, sentenced to death.