Sorry my mistake, so this matter has nothing to do with the police wanting the CCTV and it has nothing to do with the security guards. Sorry, Hard to keep up sometimes.
Welcome to report me if you think I'm trolling. But I reckon the mediator is just gonna shrug because the advice I'm giving is accurate and supported by the other punters here, some of whom are soliciotors. You have some serious charges and this latest one comes with some serious jail time. If nothing else I strongly encourage you to seek legal advice from a qualified criminal law specialist. Sure, good idea to scope out suggestions here and ask opinions and this is one such example where what you did was pre-meditated. It would have been a bloody good idea to ask for opinions here first before posting those letters. However, I suspect you'd have done it anyways.
But as I have stated before, simply expressing an opinion that differs from your's doesn't make me a troll.
Just outa interest... I know you had absolutely no intention to intimidate those witnesses. But, do you think the recipients of these cease and desist letters maybe might have felt that the intention was indeed to intimdate? Are you able to see how simple it is to make that case?