Your company should have a grievance procedure...

Initially I'd suggest speaking with your own line manager to make it clear you are uncomfortable with the behaviour. Get them to the confirm conversation back to you after in writing (email).

You could initiate a grievance which should kick off a formal or informal investigation.

Company should also have a whistle blowing charter so you could do it anonymously by following whatever process is in place for that.

Posted By: Worthing Yellow, May 25, 12:34:29