Involved in case could mean 'Brijnen van Houten' a Dutch anti Nazi involved in the Stevens/Best case also.
The Venlo Incident was a covert German operation where two British Secret Intelligence Service (SIS) agents (Stevens & Best) were abducted on the outskirts of the town of Venlo, the Netherlands, on 9 November 1939. The incident was later used by the German Nazi government to link Britain to Georg Elser's failed assassination attempt on German Chancellor Adolf Hitler at the Bürgerbräukeller in Munich, Germany, on 8 November 1939 and to justify Germany's invasion of the Netherlands, while a neutral country, on 10 May 1940.Richard Henry Stevens (9 April 1893 – 12 February 1967) Captain Sigismund Payne Best OBE (14 April 1885 – 21 September 1978)
The RSHA (Reich Main Security Office) came into existence on 27/9/39 after being separate offices of the SD (security service) and SS (nazi paramilitaries) since the mid 1930's. AMT I & AMT II were formed officially on 1/10/39 but reorganised completely after March 1941, heads of department were regularly transferred to different departments and the Einsatz Squads of paramilitary murderers when new countries were invaded as all had perceived 'undesirables' to be eliminated.
AMT IV was probably the most infamous of all the Nazi security apparatus, 'the Gestapo' (GEheime STAats POlizei) The secret state police, who were the instigators of all interrogation, imprisonment, murder and genocide in the nazi regime.
SS Major & Administrative Councillor Schellenberg, Criminal Police Doctor Schambacher
Walther Friedrich Schellenberg (16 January 1910 – 31 March 1952) rose through the nazi ranks to become a brigadefuhrer (SS General) by the end of the war. Schellenberg was the author of the 'Black book GB' which detailed those to be arrested on a successful nazi invasion in 1940. In November 1939 Schellenberg played a major part in the Venlo Incident, which led to the capture of two British agents, Captain Sigismund Payne-Best and Major Richard Stevens. Hitler awarded Schellenberg the Iron Cross for his actions.In 1940 he was also sent to Portugal to intercept the Duke and Duchess of Windsor and try to persuade them to work for Germany. The mission was a failure; Schellenberg managed only to delay their baggage for a few hours.
In March 1942, Heinz Jost was fired from his position as RSHA Chief of Amt VI, SD-Ausland (SD foreign intelligence) & in his place, Schellenberg was appointed chief of SD-Ausland by Heydrich. the overall head of the entire security apparatus of the Nazi regime. According to his later memoirs, Schellenberg had been a friend of Wilhelm Canaris, the head of the Abwehr (military intelligence). However in 1944, the sections of the Abwehr were incorporated into RSHA Amt VI SD-Ausland and therefore placed under Schellenberg's command. Schellenberg was in Denmark attempting to arrange his own surrender when the British took him into custody in June 1945; the American, British, and Russian intelligence services had all been searching for him as a valuable intelligence asset.He was a witness in the Nuremburg trials but not convicted himself and released due to ill health & died of cancer in Turin in 1952. Ernst Schambacher Born 1899 in Berlin, Died 18 May 1945 in Houska , Czechoslovakia ) There are also reports he managed to escape from Czechosolovakia and whilst on the run he committed suicide.
Great Britain was to come under 'Scandinavea' for all counter espionage investigation