You may be convinced that the social worker is lying. But think very carefully about that word. It is complicated. Someone may say something that is not true and so on one level they are lying ie not telling the truth. But are they deliberately trying to deceive? Just like you they ar often reporting what they have been told and either believe or are not sure about. In other words they may be mistaken without trying to pull the wool over anyone’s eyes. When a parent says something they base that often on what they have been told or believe. They may be wrong. Just occasionally a social worker is really careless ie they don’t check whether what they are told is true or might be wrong. We all take things on trust. The trouble with court cases is that they pitch everyone into a battle. Just remember that in the heat of war mistakes are made and you need to step back with your advisors and look at all the possible explanations. If you do that and you are right you will be much more powerful.