Today I spoke to a specialist referred to me by our family lawyer. The conversation was very interesting and his consultation confirmed that I was completely in the right in how I conducted myself, the questions I asked the person(s) involved and my recording of the incident with a quick press of a button on my phone.
I hate not being able to post details, but here's a news story that carries some interest to me right now:
Now the next question - what next? When I can I'll update, whether it's mitigation, playing "Meet the Press", pursuing a Statement of Claim, or even having a charge sworn before a JP.