The due process requirements in modern administration can be roughly divided into three categories: ”impartiality, openness and participation”, while the ”openness” was formed by the Freedom of Government Information Act enacted on December 2005. This article focuses on ”openness” and contains three major sections: 1. The content of government information disclosure. (including the analysis of active disclosure of information, passive disclosure of information, exemption from disclosure) 2. The exemption from the information disclosure due to privacy. 3. Analysing the roles of the Ombudsman (Beauftragter für den Datenschutz) of the freedom of information protection in Germany, which offer alternative mechanisms for enforcing the transparency and openness of the Germany institutions.