An attorney who is a clerk or deputy clerk of any court, other than a surrogate or deputy surrogate, or who is, or is in the employ of or regularly assigned to a court, judge, or court clerk, shall not practice in any court, but the limitation so imposed upon him shall not be greater than the limitation on the practice of the judge of such court. An attorney who is, or is regularly assigned to, a jury commissioner, grand jury or probation department shall not practice in any court in that county.
