//Would New Judge be able to help maybe?//
Yes I can because I have seen witnesses give their evidence in both the Crown Court and the Magistrates’ Court. But I would suggest the best way to see what the process is would be to visit a Crown Court. A description in words cannot really portray the event very well. That said, beware! Since you are writing fiction you should realise that there is a big difference between what goes on in court and what you see on the telly or read in a book. Anyway, the basic process:
The witness is called in to court (he must not have observed any of the trial before he gives his evidence) and is “sworn in”. This involves either taking an oath on a religious book of his choice or making a non-religious affirmation to tell the truth. Whatever he chooses, the effect is the same – he undertakes to tell the truth and can face a charge of perjury if he does not.
He is then asked by the prosecutor (assuming he is a prosecution witness) questions about the events he witnessed. These will be based around the statement(s) he provided to the police. He may be asked to go into some detail if the prosecutor wants the court to be sure the court learns about a particular point. This is called his “evidence-in-chief.” After that is finished he will be “cross-examined” by the defence advocate. This process is designed to test the strength of his evidence and may involve putting alternative versions of events to him. This can become quite demanding on the witness and, as far as drama is concerned, is probably the most dramatic aspect of the trial. When that is done he can face “re-examination” by the prosecutor if he wants to clarify any points that may have arisen from cross-examination. At any time the judge may intervene to ask questions himself or to ensure the rules of evidence are being followed. When all that is done he is “released”. The judge may warn him that he may be recalled (depending on the progress of the trial afterwards) but will certainly warn him that he must not discuss his evidence with anybody else, in particular witnesses who are still to come.