8.10 Right of the other members of the division to put questions 

The chair must allow any member of the examining or opposition division who so requests to put questions. The chair may determine at which point in the proceedings the questions may be put.

At oral proceedings, questions may be put to the parties about their statements or about the discussion of the facts or the legal position. When evidence is taken as part of oral proceedings, questions may also be put to the witnesses, parties and experts called. On the parties' right to put questions, see E‑IV, 1.6.7.