James 4:11-12 speaks of not judging a brother. The context here is judging for the purpose of condemning a brother by speaking evil. But judging to cause correction and discipline is not evil speech, and is promoted by scripture.
Church leaders are not above reproach and can be accused of sin by another leader or fellow believer. See 1 Timothy 5:19-20: “Do not admit a charge against an elder except on the evidence of two or three witnesses. As for those who persist in sin, rebuke them in the presence of all, so that the rest may stand in fear.”
This passage says that charges against an elder or leader in the Church are admissible if there is evidence from at least two or three witnesses. We have brought charges against KP with seventy-five witnesses, and yet KP has dismissed us as wrong and misunderstanding, and persists in his sins. If he continues to persist then he ought to be rebuked by the other leaders in the presence of all, according to this passage. Oh that they would have the courage to do this.