The ongoing corona pandemic, which has dominated life worldwide for over a year, also has an impact on PD Dr Patrick Schmidt's research project: travel restrictions make research visits to the UK difficult in general – but the historian is also confronted with reduced opening hours and access restrictions on site. In addition, there is another challenge in dealing with the source material. The researcher mainly refers to court martial records, which are, however, limited in their informative value: Not infrequently, certain aspects were concealed – or defendants and plaintiffs pursued certain strategies with their statements, so that the objectivity of the source material must always be questioned.