i accompanied a friend to court as support about twenty odd years ago. the prosecution merely presented the evidence against him, but his lawyer instructed him that he would ask him some questions in the court. the lawyer said to him that the entire purpose of this exercise was for the judge to hear his rather polished middle-class accent and be aware of which school he had attended.. so the judge would think ''he's one of us''  as the lawyer considered it an advantage which it was.