Jobst came from a German family living in Czech Sudetenland which was ultimately annexed through the Munich Agreement by the Third Reich in September 1938.
Jobst was accused of giving injections to terminally ill prisoners in his capacity as camp doctor in Ebensee from 1944 to 1945.
The arrival of a transport consisting of 1,000 to 1,500 prisoners from Silesia in February 1945 was of particular importance in this regard, as 200 are said to have died within a short time.
Jobst denied having selected sick prisoners for injections saying he did what was within his means to ensure the care of the camp inmates.
The US military court did not believe his story, and Jobst was found guilty of ill-treatment, torture and murder of prisoners in his capacity.