I had a quick search of Allison's original witness statement, which I hope the new Judge (Bourne) is also reading. (I'm putting it in italics not bold, as too much bold hurts my eyes!)
(324) At the same time that Michelle Brewer was complaining about me on 16 October 2019 (as dealt with from paragraph (291) above), she was continuing to work closely with Stonewall. In the bundle are heavily redacted emails between Shaan Knan (of the Stonewall Trans Advisory Group and the LGBT Consortium) and Michelle Brewer from 1 October 2019 onwards about an event which Garden Court were hosting for Stonewall and others on the evening of 23 October 2019. The event was discussed within Stonewall. Kirrin Medcalf, who would go on to write the Stonewall complaint about me to Chambers on 31 October 2019 attended this meeting (Bundle Pages 1848-9).
(325) The trans rights meeting Michelle Brewer had organised with Stonewall went ahead on 23 October, with Stonewall representatives present. It took place in the building at Garden Court Chambers. I did not know anything about it, or that it was happening. Michelle Brewer, who had set up the meeting (and who, as a Garden Court barrister, was effectively its host) was in fact in Scotland and had given her apologies. She did however ask Shaan Knan of the Stonewall Trans Advisory Group to pass on a message to the attendees, asking them to make complaints about me to my Heads of Chambers. The communication in which she made this request has not been disclosed, though it may have been a verbal request. However, Shaan Knan did as Michelle Brewer requested. The minutes of the meeting record him saying (Bundle Page 3847): “Community encouraged to write to Garden Court Chambers Heads in the next couple fo [sic] days to express concern about Allison Bailey’s (barrister) transphobic comments on Twitter. Chambers having a meeting to decide on formal action against barrister Allison Bailey”.
(326) Two of those present in that meeting were Kirrin Medcalf, the Head of Trans inclusion at Stonewall, who wrote the Stonewall complaint against me, and Josh Bradlow, the Head of Policy at Stonewall, who was Mr Medcalf’s boss.
(327) Knan’s reference to the “meeting” to decide on formal action against me (which in the event took place on 28 October) is the first mention of it in the bundle. Neither Garden Court nor Stonewall have disclosed any document in these proceedings to explain how Shaan Knan knew such a meeting was to take place. It appears that he must have been told about it by Michelle Brewer, which in turn provides further evidence that she was in discussion with the Heads of Chambers and others about me and the prospect of taking "formal action” against me.
(328) After the meeting, Michelle Brewer contacted Shaan Knan who reported back (Bundle Page 2138). He wrote: “I did bring up briefly the issue with the terfy barrister and asked people to support and write to Head of GC. I hope to put something together tonight. We won't of course engage with her on social media”.
I'm reading this as: Stonewall representatives were asked by Garden Court Chambers to discriminate, and Stonewall as Stonewall willingly agreed and by doing so caused the detriment.