On 29 September 1970, Schubert drove the getaway car during an RAF robbery of a savings bank in Berlin. In the summer and autumn of 1970 Schubert took part in at least 2 further bank robberies. On 8 October 1970, Schubert was arrested at an apartment in Berlin along with RAF members Horst Mahler, Brigitte Asdonk and Irene Goergens.[3]