I'll second that HR comment. Honestly, I'd be considering expunging the entire team at this point. Assuming the allegations are correct, they violated the law

I'll second that HR comment. Honestly, I'd be considering expunging the entire team at this point. Assuming the allegations are correct, they violated the law directly in some cases and where they didn't, they ensured that ethical lapses went unpunished, reporters of ethical lapses were punished/threatened and that this was basically effective policy of the organization. Staff within the company will never be comfortable with reporting incidents to that team unless all of management, anyone directly involved in these allegations and (probably) most of the HR staff is replaced. Hiring a good, well known, HR manager to rebuild the organization would be the next, good, step. Policies and codes of conduct are like laws. If they're unenforced, they don't exist.