Particularly persons trying to put forward other people's wrongdoings, in attempt to defend themselves. What you feel you may know about a person doing wrong, and having concrete written proof of it, are two very different things. It even would be likely to land you in more trouble than you are already in, and the magistrate or judge would be likely to rule such 'evidence' as impermissible. You really do need to speak to a solicitor, and obtain someone to conduct your defence.