Bundesgerichtshof
In 1946, Martin was appointed a judge in Sonthofen, and in 1950, he was employed in the Federal Ministry of Justice. In 1951, he was appointed Oberstaatsanwalt in the Generalbundesanwaltschaft, and in June 1952, he was appointed Federal Attorney (Bundesanwalt). He was appointed a federal judge in 1953, serving for ten years until 1963, mostly as a criminal judge at the Federal Court of Justice of Germany.