A bit of an odd one here. I worked at school A for years until I left to have children. My HT is odd to say the least, without going into it, they are a controlling. Several members of staff have left in the last year due to this. One staff member now works at school B which is in the same area and the HT who doesn't like this school has refused to give a reference, ok that's fine. What I'm asking is I'm now interested in working at school B and asked the AH if they could write me a reference but they said the HT has said that they have to ok all references first. Is this legal does anyone know?