"3. The tribunal misdirected itself in holding that a breakdown of mutual trust and confidence was a reason for dismissal falling within section 98(1) or (2) of theEmployment Rights Act 1996 and/or misdirected itself in holding that the decision to dismiss the applicant was fair in accordance with section 98(4) without finding whether either party, and if so which, was in breach of the duty not to undermine the relationship of trust and confidence between them."