[Mz]

A couple of thoughts:

A) Codes of conduct are best enforced by example. So be very, very mindful of your own behavior and that will do a lot to deter problems.

B) When I worked at a Fortune 500 company, harassment got reported to HR. HR interviewed people separately. So that might be sort of a vote for a neutral third party to turn to.

(I got interviewed after I emailed a male on my team and copied our boss and told him in no uncertain terms "don't you ever speak to me that way again in a meeting." I was never told the outcome but my suspicion is that he was probably sent to sensitivity training. So, presumably, they decided in my favor. He avoided me and was angry for a time. I spent some months winning his trust again. I eventually smoothed things over. But, no, he never spoke inappropriately to me again.)

Best of luck.

[AlexeyMK]

Thank you! Any ideas for whom a reputable, neutral third party might be, that would be interested in an experiment like ours?

[Mz]

Sorry, I have no idea. It isn't anything I have experience with.

Best of luck.