On the bench, the Chief Justice of Canada (or the senior puisne justice) presides from the centre chair with the other justices seated to the right and left of the Chief Justice by order of seniority of appointment. At sittings of the Court, the justices usually appear in black silk robes but they wear their ceremonial robes of bright scarlet trimmed with Canadian white mink in court on special occasions and in the Senate at the opening of each new session of Parliament.