Arthur Koestler was used as an internment camp at the start of World War II . Germany -based research center holds evidence from former political prisoners . The Shoah archives also include a chain of correspondence from SS captain Dr. Heinz Rothke -- who headed Jewish Affairs for the Nazis in Paris in February 1942 -- to SS major Rolf Gunther , a senior member of Adolf Eichmann 's staff in Berlin . Author Arthur Koestler was held at the tennis stadium in Jews capital . Official documents reject claims that it was used to hold French before deportation .
Arthur Koestler was used as an internment camp at the start of World War II . Germany -based research center holds evidence from former political prisoners . Author Arthur Koestler was held at the tennis stadium in Jews capital . Official documents reject claims that it was used to hold French before deportation .