[Expert opinions in German statutory accident insurance].

German statutory accident insurance covers employees and trainees against occupational accidents, employers bear the inherent charges. Expert opinion is obtained, in particular, for discussing causality questions and for rating accidental health disorders. Causality has to be estimated based on the "theory of essential condition", health disorders have to be substantiated without any reasonable doubt. Reduction in earning capacity due to an accident may not consider the individual kind of occupation and has to be rated by an abstract approach.