Employees with sufficient length of service and who otherwise meet the qualifying criteria have statutory protection from unfair dismissal. To avoid a finding of unfair dismissal, it will generally be for the employer to show for the purposes of section 98(1) of the Employment Rights Act 1996 (ERA 1996): • what the reason (or, if there was more than one, the principal reason) was for dismissing the employee, and • that it was a potentially fair reason If the employer is unable to satisfy the tribunal that the reason for dismissal was potentially fair, the dismissal will be unfair. If the employer does establish a potentially fair reason for dismissal, the tribunal will, under ERA 1996, s 98(4), consider whether the employer acted reasonably or unreasonably in treating that reason as sufficient to justify dismissal, having regard to all of the circumstances of the