Council of Trent: Session XIV, Reformation, Chapter VIII

CHAPTER VIII. No one shall, by virtue of any privilege, punish the clerics of another.

Furthermore, forasmuch as there are sundry persons,--some of whom even are true pastors, and have their own sheep,--who seek also to rule over the sheep of others, and at times give their attention in such wise to the subjects of others, as to neglect the care of their own; no one, even though he be of episcopal dignity, who may have by privilege the power of punishing the subjects of another, shall by any means proceed against clerics not subject to him,--especially against such as are in sacred orders,--be they guilty of crime ever so atrocious; except with the intervention of the proper bishop of the said clerics, if that bishop be resident in his own church, or of the person that may be deputed by the said bishop: otherwise, the proceedings, and all the consequences thereof, shall be wholly without effect.

Translation: J. Waterworth, The Canons and Decrees of the Council of Trent (1848), Hanover Historical Texts Project transcription (1995).