Heinz Hermann Schubert was born in Berlin shortly after the outbreak of the First World War.

[1] Prior to his use in the Einsatzgruppe, he worked in the department I A 4 (personal details of the SD) of the Reich Security Main Office (RSHA).

He returned to the RSHA in Berlin to manage Amt III (SD Germany and German spheres of life).

[1] In 1947–1948, Schubert was the youngest of 24 defendants in the Einsatzgruppen Trial in Nuremberg; his lawyer was Josef Kössel.

Despite his young age and rather low service level, Schubert belonged together with Willi Seibert and Hans Gabel (company commander of 4./Reserve-Police-Battalion 9) to the small management team of Einsatzgruppe D under the leadership of Ohlendorf, that murdered approximately 90,000 people.

This was why the U.S. high commissioner John J. McCloy on 31 January 1951, due to the recommendations of the "Advisory Board on Clemency for War Criminals" to change 15 death sentences against Landsberg prisoners.