(93)Retaliation is likely to be presented as being justified on grounds other than the reporting and it can be very difficult for reporting persons to prove the link between the reporting and the retaliation, whilst the perpetrators of retaliation may have greater power and resources to document the action taken and the reasoning. Therefore, once the reporting person demonstrates prima facie that he or she reported breaches or made a public disclosure in accordance with this Directive and suffered a detriment, the burden of proof should shift to the person who took the detrimental action, who should then be required to demonstrate that the action taken was not linked in any way to the reporting or the public disclosure.