I think it is relevant if it shows the boys character and I am not saying the quiz itself, more that you want to be able to see what he is doing and saying about DS so that if he does say soemthing threatening or confesses to doing something to Dianne or DS or their home then they will have evidence for this case.

I dont think this boy is going to go away in a hurry. Teenagers can not simply 'block out' what someone is saying about them because they arent reading it or hearing it and it can cause them more harm than good if people say to them 'just ignore it'. Its not something that they are capable or mature enough to do. I would be keeping a file on this kid and including anything and everything relevent to this particular case or not because if it does get worse than Dianne has more ground to stand on.

As for what is admissable in a court, it is considered to be defaming if it falls under one of the below statements:
-An imputation which may tend to cause a person to be hated or despised, or cause them to be treated with contempt by their peers;
-The publication of material that renders a person to ridicule, even if involving humour. The publication of a photograph that contained an optical illusion giving the appearance that someone was guilty of indecent exposure is defamatory;
-Certain caricatures have been held to be defamatory. Determining what is defamatory is notoriously difficult in these matters. The distinction between artistic freedom and defamation will no doubt remain the subject of litigation."

For a defamation action to be successful, it must be established that the communication:-was published to a third person, i.e. to at least one person other than the plaintiff (person/entity defamed).
-identifies the plaintiff, for example, by name or by a reference to a small group of people, etc.
-contains a defamatory statement or imputation (whether intentionally published or not).