I have a court case against my landlord for disrepair. At the end of last year I had enough of waiting for him to respond to all the issues we have in the property, and I've sent him a letter of claim. After that he came to inspect the property (with his father posing as a building expert) and he was very arrogant, threatened me with eviction and skyrocketing rent if he does any repairs. He talked down to me and in general his visit was extremely unpleasant.
I recorded it all on my iPhone voice recorder and made a transcript of this conversation, but I didn't tell him that I'm recording it as I know that the only way to show his true colours is to do it without his knowledge (example: he phoned my solicitor after she contacted him to tell him, that we will commence legal proceedings against him and said to her, that he is an innocent victim here, that I was very happy with everything until 6 months ago and he didn't know about any problems in the property, which is a lie as I have tons of evidence to prove otherwise).
So my question is: can I ask for admission of this recording in a court, as I believe it is highly relevant and probative?