Yes, they are totally biased. I suggest you have somebody with you. The barrister who negotiated with me prior to a hearing told the judge I was the most hostile and difficult person in years of experience as a barrister. I was totally placid. Only problem is I did not fall for traps set.But they clearly represent one side so they are totally biased.
They will attempt to get you to commit to a position and refuse to take a position themselves.