Quis custodiet?

In this context, who judges who should be a judge?

Six new members have been appointed to the Judicial Appointments Commission, which selects judges in England and Wales. They are Christopher Bones, Anthony Harnden, Clare McGlynn, Noel Arnold, Uchechi Igbokwe and Tanweer Ikram. Their biographies appear later in this piece. Their appointments are for a period of three years.

Circuit judges at Westminster …