“12. AB was due to give evidence on24 July 2017 , at the beginning of the remedies hearing, but did not do so. The Employment Tribunal was told she was not able to give evidence that day as she was not able at that time to give instructions. AB's counsel Gerard McDermott QC told the Tribunal that he needed to speak to AB further to determine whether she would be able to give evidence. That being so, the remedies hearing started with the evidence of Dr Ornstein, which lasted until lunch the next day,25 July 2017 . After lunch on 25 July, AB came into the hearing room. In its Judgment, the Employment Tribunal records that when AB was asked questions by Mr McDermott " ... her response was unintelligible. She did not appear to recognise Mr. McDermott. Her responses to the very simple questions he put to her were sounds and grunts, not words. Her presentation was similar to that described by Dr. Valentine and shown in the recording he had taken of a part of his interview with [AB] and which was watched in the course of this remedy hearing". Dr Valentine is a Consultant in pain medicine. He had provided a report for the proceedings dated27 May 2017 . In that report he set out how AB had acted when she was examined by him on5 April 2017 . "[AB] presented with her back to me. She was observed to perform a variety of movements throughout the assessment, for example, she was observed to slap herself, scratch herself, and rock to and from. She communicated broken/stuttering speech accompanied by other non-verbal vocalisations." Mr McDermott QC and Mr. Young, who acted for AB in the Employment Tribunal proceedings and act for her in this appeal, accepted Mr Carr's description that AB's presentation at the Employment Tribunal was "shocking". The Employment Tribunal explains in its Judgment that Mr McDermott then informed it that he would not be calling AB to give evidence. “13… RBS applied to the Employment Tribunal for an order requiring an assessment of whether AB had capacity to conduct the Tribunal proceedings. If the result of that assessment had been that AB did not have capacity, it would have been necessary for a litigation friend to have been appointed to conduct the proceedings on her behalf. … Later the same morning (26 July 2017 ) the Employment Tribunal refused RBS's application. … The Employment Tribunal referred to the presumption atsection 1(2) of the Mental Capacity Act 2005 that a person is to be assumed to have capacity "unless it is established that he lacks capacity", and also to sections 2 and 3 of the 2005 Act. At paragraph 26 of the Judgment the Employment Tribunal said as follows as to why an assessment of AB's capacity to conduct the litigation was not necessary. "26. After giving consideration to the representatives' helpful submissions the Tribunal concluded that the presumption [of capacity had not been displaced and refused the Respondent's application for the case to be stayed in order for a formal assessment to be made including for the following reasons: 26.1 The Claimant's legal team were satisfied that they could obtain the necessary instructions from their client and continue with these proceedings. 26.2 This is a case where the Claimant has a QC that has been recently instructed. She has a junior, Mr. Young, who has been representing the Claimant over a long liability hearing and numerous Preliminary Hearings. 26.3 The Claimant has had solicitors who have been representing her for years. 26.4 The instructions that the Claimant's lawyers take from the Claimant are privileged. They are satisfied that they are able to continue to act for the Claimant. 26.5 Dr Ornstein has given a recent assessment of the Claimant's capacity, based on meeting her April 2017, in which he has given his view that the claimant has the necessary capacity. 26.6 Neither of the psychiatric experts present in this Tribunal had notified the Tribunal that their professional opinion is that the Claimant does not have capacity. 26.7 The presumption ofsection 1 of the Mental Capacity Act , that an individual has capacity to act has not, therefore, been displaced and the application was refused." 14. … 15. Late in the afternoon on 27 July (the fourth day of the hearing), RBS asked the Employment Tribunal to reconsider whether an assessment of AB's capacity to litigate was required. …RBS contended that new information was available in the form of a note prepared by Dr Stein dated27 July 2017 . In that note, Dr Stein set out observations on AB's presentation at the Employment Tribunal hearing on the afternoon of25 July 2017 . The essence of the note was that if the way AB presented was accepted at face value, it gave rise to grounds for doubting her decision-making capacity. 16.The Tribunal rejected the application. …”