The term "Lothar Barthel" is not widely recognized in general encyclopedic literature and lacks extensive documentation in mainstream English-language references.
Historical records and specialized academic texts identify Lothar Barthel (born 1904) as a German lawyer and official who served during the National Socialist era. He held the rank of SS-Sturmbannführer and functioned as a judge within the SS and Police Court system (SS- und Polizeigericht). In this capacity, he was part of the judiciary that handled legal matters and disciplinary proceedings within the SS organization.
Due to a lack of broad biographical coverage in established encyclopedias, further verified details regarding his life, specific judicial rulings, or post-war activities are not widely available. He is primarily cited in specialized historical indices and archival lists pertaining to the administrative and legal personnel of the Third Reich.