§ 11 BDSG
Appointment and term of office
(1)The German Bundestag shall elect the Federal Commissioner, without debate, on a proposal by the Federal Government, by more than half of the statutory number of its members. The elected person shall be appointed by the Federal President. The Federal Commissioner must have attained the age of 35 at the time of his or her election. He or she must possess the qualifications, experience and expertise required to fulfil his or her tasks and exercise his or her powers, particularly in the field of the protection of personal data. In particular, the Federal Commissioner must possess knowledge of data protection law acquired through relevant professional experience and the qualification to hold judicial office or for the higher administrative service.
(2)The Federal Commissioner shall take the following oath before the Federal President: "I swear that I will dedicate my efforts to the well-being of the German people, promote their welfare, protect them from harm, uphold and defend the Basic Law and the laws of the Federation, fulfil my duties conscientiously, and exercise justice towards everyone. So help me God." The oath may also be taken without religious affirmation.
(3)The term of office of the Federal Commissioner shall be five years. One re-election shall be permissible.