Without details, hard to point you in the right direction. NATS and SERCO have well defined policies on these subjects and it's fairly easy to get the company working for you. In really serious cases it is gross misconduct, which can mean summary dismissal. Other employers should have similar policies, but it may be more difficult to get management on your side. Unions are also pretty hot on bullying too. If it is affecting your controlling you could put in an MOR, and CHIRP is worth a try. But here's an important bit - get a notebook (not a file where pages can be inserted and deleted) and make dated, written notes whenever an incident occurs. This will stand you in very good stead should you have to prove your accusations in any disciplinary hearing. Are colleagues similarly affected? Try to get them on board too.