ARREST AND RELEASE BY THE NAZI REGIME

According to André Sellier, a French historian and survivor of the Mittelbau-Dora concentration campHimmler had von Braun come to his Hochwald HQ in East Prussia in February 1944.[39] To increase his power-base within the Nazi regime, Heinrich Himmler was conspiring to use Kammler to gain control of all German armament programs, including the V-2 program at Peenemünde.[9]:38–40 
He therefore recommended that von Braun work more closely with Kammler to solve the problems of the V-2. Von Braun claimed to have replied that the problems were merely technical and he was confident that they would be solved with Dornberger's assistance.
Von Braun had been under SD surveillance since October 1943. A report stated that he and his colleagues Riedel 
and Gröttrup were said to have expressed regret at an engineer's house one evening that they were not working on a spaceship and that they felt the war was not going well; this was considered a "defeatist" attitude. A young female dentist who was an SS spy reported their comments.[9]:38–40
Combined with Himmler's false charges that von Braun was a communist sympathizer and had attempted to sabotage the V-2 program, and considering that von Braun regularly piloted his government-provided airplane that might allow him to escape to England, this led to his arrest by the Gestapo.[9]:38–40
The unsuspecting von Braun was detained on March 14 (or March 15),[40] 1944 and was taken to a Gestapo cell in Stettin (now Szczecin, Poland),[9]:38–40 where he was held for two weeks without knowing the charges against him.
Through the Abwehr in Berlin, Dornberger obtained von Braun's conditional release and Albert Speer, Reichsminister for Munitions and War Production, convinced Hitler to reinstate von Braun so that the V-2 program could continue.[9]:38–40 Quoting from the "Führerprotokoll" (the minutes of Hitler's meetings) dated May 13, 1944 in his memoirs, Speer later relayed what Hitler had finally conceded: "In the matter concerning B. I will guarantee you that he will be exempt from persecution as long as he is indispensable for you, in spite of the difficult general consequences this will have."...OP+