Bettina Spilker 
 Behördliche Amtsermittlung
[Administrative Ex Officio Investigation.]
 2015. XX, 460 pages.    Summary 
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 Whether a state functions properly or not is dependent on the general acceptance of its legal system. From that point of view, it is vital that the state treats citizens solicitously when carrying out its administrative duties. Bettina Spilker uncovers deficiencies in the system and in particular through the use of guidelines for official ex officio investigations and a codification of the exclusions of evidence codification in public law, seeks to make a beneficial contribution to the democratic constitutional order.
   
 