Canon law does not apply to those outside of the Church. Jesus never addressed this. St. Paul did a little, but only addressed how Christians are to handle the issue. There is no instruction forbidding civilian action against those in the Church who commit crime. This is the closest scripture on that.
Romans 13: 1. Let every person be subject to the governing authorities. For there is no authority except from God, and those that exist have been instituted by God. 2 Therefore he who resists the authorities resists what God has appointed, and those who resist will incur judgment. 3 For rulers are not a terror to good conduct, but to bad. Would you have no fear of him who is in authority? Then do what is good, and you will receive his approval, 4 for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain; he is the servant of God to execute his wrath on the wrongdoer. 5 Therefore one must be subject, not only to avoid God’s wrath but also for the sake of conscience.
One can love the Church and still want to see justice done, or at least support the process of civil justice outside the Church. In fact, I bet most all support crime being tried outside of the Church.