1.6.2 Witnesses and experts not summoned 

After opening the proceedings for taking evidence, the official in charge of the taking of evidence, i.e. in substantive examination and opposition proceedings the chair of the division concerned or the member commissioned to take evidence, will determine whether any party requests that any other person present but not summoned be heard. If a party makes such a request, they must briefly state why and to what purpose the person concerned should give testimony. The department in question will then decide whether or not to grant the request (on the admission of facts or evidence not filed in due time, see E‑VI, 2).