Canon 20
If presbyters or deacons have been accused, let their case be discussed by their bishops, who should be joined by the legitimate number of their fellows from neighbouring places, that is five in a presbyter's case, two in a deacon's. The same form should be maintained in regard to the days, the adjournments, the withdrawal of communion and the distinction of persons between the accused and the accusers.
The cases of other clerics should be judged by their bishop alone.
(trans. S. Adamiak)