The UK Court of Appeal has ruled, in the case of NHS Manchester v Fecitt & Others, that an employer cannot be vicariously liable for acts of victimisation by its employees against whistleblowers. The Court also clarified the correct test for determining whether a worker has suffered a detriment on the ground of making a protected disclosure (ie. whistleblowing). The Court decided that to avoid liability under the whistleblowing legislation, the employer must show that the employee’s protected disclosure did not materially influence (i.e. more than trivially influence) the employer’s treatment of that employee.
The whistleblowing legislation provides protection in two ways. First, dismissal of an employee is automatically unfair if the principal reason for dismissal is that they have made a protected disclosure. Second, workers have a right not to be subjected to a detriment by their employer on the ground that they have made a protected disclosure. This case concerned the second of these protections.