About the work: Evidence law is one of the central subjects of administrative procedural law. It holds significant practical importance, for example, in immigration and asylum law, civil service and disciplinary law, as well as in construction, environmental, and technology law. The new guide provides a systematic overview for the first time. A key focus is on evidence motions, which are particularly important from a lawyer's perspective. In administrative proceedings, characterized by the principle of official investigation, these motions primarily serve to inform the parties about the status of judicial opinion formation and to keep procedural objections open. The guide clarifies relevant questions from the drafting of evidence motions to their adjudication by the court, as well as the lawyer's options for responding to rejected evidence motions. Evidence motions are prone to errors, and this applies equally to lawyers.