European Ombudsman Emily O'Reilly has asked the European Commission to publish letters and internal notes concerning the resignation of former Commissioner John Dalli in October 2012.

The Ombudsman inspected the documents as part of her inquiry into a complaint from an NGO whose request to get access to them was refused by the Commission.

Ms O'Reilly said: "The Commission's arguments for refusing to give access are not convincing. Releasing the documents would reassure the public that the Commission dealt very seriously with this case and set an example of transparency for future cases of great public interest."

In January 2013, Corporate Europe Observatory lodged a complaint with the Ombudsman about the Commission's refusal to release two letters from former Commissioner Dalli to Commission President Barroso and two internal notes concerning meetings between Barroso and Dalli.

The Commission explained its refusal with the need to protect an investigation by the Maltese authorities and its own follow-up actions.

The Ombudsman inspected the documents and concluded that the Commission's arguments were not convincing.

The documents had not been sent to the Maltese authorities as evidence for their investigation, nor did they contain any information that was not already in the public domain.

The Ombudsman concluded that the Commission has failed to explain how the disclosure of the documents would have undermined the investigation by the Maltese authorities and its own follow-up actions. The Commission has to respond by July 31.

The Ombudsman's full recommendation is available here.