2.2 Legally qualified members 

If the opposition division considers that the nature of the decision so requires, it is enlarged by the addition of a legally qualified member who has not taken part in the proceedings for grant.

The principles established by the examining division for including a legally qualified member and consulting the Directorate Patent Law and Processes (the department responsible for providing legally qualified members for examining and opposition divisions) apply mutatis mutandis to the opposition division (see C‑VIII, 7). Difficult legal questions may also arise when examining whether an opposition is to be rejected as inadmissible. In addition, consultation of a legally qualified member is to be considered in cases where it is questionable whether a disclosure by means other than a document was made available to the public.