CLOSE

Santiago O’Donnell: A landmark judgment for the protection of sources

Santiago O’Donnell: A landmark judgment for the protection of sources

On 22 June, Santiago O’Donnell won his appeal before the Supreme Court in Argentina, defending his right not to surrender his source materials. The judgment is a landmark one, asserting that the decision to make public the content of interviews remains with the journalist, rather than the interviewee.

The case

Back in 2021, we began supporting the defence of Santiago O’Donnell, an Argentinian investigative journalist, author and editor of international news at newspaper Página 12.

O’Donnell had published a controversial book, entitled “Brother: Mariano Macri’s Confession about the web of power, politics, business, and family behind his brother Mauricio”, in October 2020. It detailed the rise of Mauricio Macri to the presidency, drawing on research and interviews with the former president’s brother, Mariano.

Once published, the book received a swift and powerful backlash from the Macri family. Mariano Macri requested that the journalist be ordered to provide a copy of the recordings of the interviews they allegedly conducted between January and August 2020, which O’Donnell used to write the book.

Macri specified that the purpose of the challenged measure was to have all the necessary elements to potentially file a claim for damages against the journalist and the publishing company for alleged breach of contract. He believed that these recordings constituted an essential and indispensable preparatory measure for alleged forthcoming lawsuit.

The first instance ruling

In December 2020, the first instance judge ordered Santiago O’Donnell to provide the recordings with Macri within a five-day period. The journalist filed a motion for reconsideration and, alternatively, an appeal, both of which were rejected by the judge.

When appealing the rejection of his motions, O’Donnell emphasised through lawyers Damian Loreti and Cristian del Rosario that only a part of the information had been published. The remaining material was therefore reserved and under the exclusive ownership and responsibility of the professional. This material could be used for future investigations and publications and contained sensitive information. O’Donnell argued that what he was seeking to protect and keep confidential was the unpublished material, which was still being fact-checked and verified through other sources.

Throughout 2021, O’Donnell’s legal team mounted a series of appeals and challenges to the ruling. They argued that the first instance court order could create a dangerous precedent impacting press freedom on the continent. O’Donnell’s subject matter was one of obvious public interest and his newsgathering activities should be protected.

After a number of failed challenges, the legal team attempted a rare appeal to the Supreme Court. On 17 February 2022, the Supreme Court suspended the first instance judge’s decision that had compelled O’Donnell to hand over the interview recordings and requested the referral of the main proceedings.

The judgment

Yesterday, the Supreme Court unanimously deemed the extraordinary appeal submitted by O’Donnell admissible. The Court annulled the first instance judge’s decision and ordered a new pronouncement.

The Court stated that “the [first instance] judge not only issued the preliminary measure without providing serious and compelling grounds regarding all the requirements for its admissibility, but also, in rejecting the motion for reconsideration, failed to provide a concrete and reasoned response on the absence of the necessity requirement, and upheld the measure based on arguments that, in some way, demanded a prior examination of the mentioned issue.”

 

To read the full judgment, in Spanish, click here.

Recent News

Defending the Truth in Courts: Media Defence and OHCHR Collaborate to Strengthen Defence of Press Freedom in Latin America

Earlier this year, Media Defence and the UN Human Rights Office (OHCHR) convened a three-day Litigation Surgery in Costa Rica, bringing together 19 lawyers from 12 Latin American countries to strengthen legal strategies for defending journalists facing lawsuits, criminalisation, harassment and violence, both online and offline. Since Media Defence began organising Litigation Surgeries in 2015, […]

Read

Media Defence Concludes Asia Pacific Litigation Surgery in Kuala Lumpur, Malaysia

From 18th to 20th November 2025, in Kuala Lumpur, Malaysia, Media Defence held the Asia Pacific Litigation Surgery, a training that combined expert-led presentations, case analysis, and peer-to-peer learning across a range of critical topics regarding press freedom. The three-day programme brought together 12 participants, representing 10 countries across the region: Pakistan, Sri Lanka, Mongolia, […]

Read

Building Solidarity Across Borders: Women Lawyers Connect Through Media Defence’s Peer Mentorship Programme

Media Defence’s Peer-to-Peer Mentorship Programme brings together lawyers from around the world to strengthen their skills, confidence, and professional networks. Its most recent cohort marked a significant milestone: the programme’s first women-focused edition. Over fourteen months, 22 women lawyers working on freedom of expression issues met across languages, regions, and career stages, forming a supportive […]

Read