The Defence Forces Ombudsman has concluded that he does not have the power to investigate the case of Commandant Alan Kearney, who was denied a promotion and had 12 criminal charges hanging over him for more than two years despite a complete lack of evidence.

Mr Kearney, who has since resigned from the Defence Forces, was subjected to a protracted investigation based on WhatsApp messages he exchanged with a former member of the force who was working for An Garda Síochána.Â