Council of Trent: Session 13
Chapter 2
An appeal from the bishop in criminal causes, when to be committed to the Metropolitan, or to one of the nearest bishops.
A case of appeal-where there is room for such appeal-from the sentence of the bishop, or that of his vicar general, shall, if it happen to be a case committed by apostolic authority to judges on the spot, be referred to the metropolitan, or even to his vicar general in spirituals; or if that metropolitan be for some cause suspected, or be distant more than two days' journey as settled by law, or if it be from him that the appeal is made, the case shall be committed to one of the nearest bishops, or to the vicars thereof, but not to inferior judges.
Chapter 3
The acts of the first instance shall, within thirty days, be given gratuitously to the accused appellant.
The accused who is in a criminal cause an appellant from the bishop, or from his vicar general in spirituals, shall absolutely produce, before the judge to whom he has appealed, the acts of the first instance; and the judge shall by no means proceed, without having seen them, to the absolution of the accused. And he, from whom the appeal is made, shall furnish on the demand (of the appellant), the said acts gratuitously within thirty days; otherwise the said case of appeal shall be terminated without them, in the way that justice may require.
Chapter 4
In what manner clerics are, on account of grievous crimes, to be degraded from sacred Orders.
And whereas crimes so grievous are sometimes committed by ecclesiastics, that, on account of the atrocity thereof, they have to be deposed from sacred orders, and delivered over to a secular court; in which case a certain number of bishops is, according to the Canons, required; and whereas, should there be a difficulty in assembling them all, the due execution of the law would be retarded; whilst, should they on any occasion be able to be present, their residence would be interrupted; therefore hath the Synod resolved and decreed, that it shall be lawful for a bishop, by himself or by his vicar general in spirituals, without the presence even of other bishops, to proceed against a cleric, even against one who is raised to the sacred order of the priesthood, even to his condemnation, as also to his verbal deposition; and he shall be able by himself to proceed even to actual and solemn degradation from the said ecclesiastical orders and degrees, in the cases wherein the presence of other bishops, in a specific number, is required by the Canons; taking, however, to himself, and being assisted therein by, a like number of abbots, who have the right of using the mitre and crosier by apostolic privilege, if so be that they can be found in the city, or diocese, and can conveniently be present; or in their default, (being assisted) by (a like number of) other persons constituted in ecclesiastical dignity, who are of weight by their age and recommended by their knowledge of law.