All company's have to have a policy to deal with bullying by law..
http://www.acas.org.uk/index.aspx?articleid=79 7
Follow what Goodsoulette has said but make sure you follow all the company's procedure.
Most company's fail here or use there own procedure and not the one they should use by law...
http://www.acas.org.uk/media/pdf/9/5/CP01_1.pd f
If you feel you are getting nowhere after you have gone through the procedure then you may have to leave under constructive dismissal
http://www.direct.gov.uk/en/Employment/Employe es/RedundancyAndLeavingYourJob/DG_10026696
Most house insurances will pay for a case to be taken to court as long as you have at least 51% of winning.
They will find you a solicitor who is in employment law..
I found the CB and acas a total waste of time and told me to drop my case...
A word of warning it can be stressful going through with any of the above. As any manger wont be happy with a complaint against him except lies to be told.
ALL BULLYS ARE SCUM<b/> and have to be stood up to.