"the majority of the tribunal take the view that the respondent's management had carried out a reasonable investigation, in the circumstances, about the allegations. They [that means the management rather than the Industrial Tribunal majority] believed Miss Sarah Evans as a witness who was telling the truth. They had investigated Miss Evans' references and found her to be a reliable and conscientious nurse. They, in the view of the majority, conducted a very fair investigation and came to the conclusion that no matter what the effect would be, that believing Miss Evans, as they did, and in her allegations, they had no reasonable alternative but to dismiss both applicants."