Lorraine Williamson
A judge at Spain’s Audiencia Nacional has partially lifted the secrecy around the Leire Díez case, bringing part of a politically sensitive investigation into public view.
The Leire Díez case concerns an alleged network that prosecutors and investigators say may have sought to interfere with or destabilise judicial proceedings affecting the PSOE or the government of Pedro Sánchez. Judge Santiago Pedraz has now allowed parts of the case file to be accessed, while keeping one section under secrecy for another month.
The decision comes five days after Guardia Civil UCO officers attended the PSOE’s national headquarters on Calle Ferraz in Madrid to request documentation connected to the former socialist militant.
What has changed now?
Judge Pedraz has lifted the secrecy of the proceedings only in part.
According to RTVE, the judge said many of the investigative steps that justified secrecy had already been carried out. However, he has kept one separate part of the case sealed for a month to avoid harming inquiries that are still pending.
EFE also reports that the partial lifting follows the UCO’s request for information at PSOE headquarters and allows the parties involved to access part of the material in the case.
Why the case matters
This is not an ordinary court file. The investigation has become one of Spain’s most politically charged legal stories because it touches the ruling party, senior socialist figures and alleged attempts to influence judicial matters.
RTVE says the inquiry is examining a supposed network that may have tried to destabilise cases affecting the PSOE and the government, as well as alleged irregularities linked to contracts involving SEPI, Spain’s state industrial holding company.
Cadena SER describes the case as an investigation involving Leire Díez, former SEPI president Vicente Fernández, and businessman Antxón Alonso. The broadcaster says investigators are looking at whether people allegedly participated in a structure designed to benefit third parties in exchange for payments.
How Ferraz became part of the story
The latest court decision follows last week’s highly sensitive visit by UCO officers to the PSOE headquarters in Madrid.
The officers did not carry out an unrestricted search of the building. They attended Ferraz under judicial order to request specific documentation linked to the inquiry.
That distinction has been important since the beginning. PSOE said last week that it had received a documentation request from Court Number 5 of the Audiencia Nacional, as part of proceedings under secrecy and unrelated, according to the party, to illegal financing. The party said it had cooperated with the request. Cadena SER also reported that the PSOE denied having ordered, protected, or cooperated in any alleged criminal conduct connected to Leire Díez.
Who is under investigation?
The case has widened beyond Leire Díez.
RTVE reported last week that the Audiencia Nacional had also included former PSOE organisation secretary Santos Cerdán and former Andalucian vice-president Gaspar Zarrías among those under investigation in the operation linked to Leire Díez. PSOE manager Ana María Fuentes has also been named in Spanish reports.
Cadena SER says the case now includes several people, including politicians, lawyers, and business figures. It also reports that Díez has asked for some investigative steps to be annulled, arguing that they are based on material outside the original period under inquiry.
Being placed under investigation in Spain does not mean someone has been tried or convicted. It means a judge considers their testimony, conduct, or documents relevant to the inquiry.
A case still partly under wraps
The partial lifting of secrecy does not mean the full case file is now public.
One section remains sealed for another month. That means some details may remain unknown until investigators complete further steps or the judge decides that secrecy is no longer needed.
This is why the case is likely to keep moving in stages. Each new procedural decision could reveal more about the alleged structure being investigated, the role of those involved, and whether the judge believes further measures are needed.
Political pressure on the PSOE
The timing is difficult for the government.
The PSOE is already facing pressure from several fronts, including the wider fallout from the Plus Ultra inquiry and other politically sensitive judicial cases. The Ferraz documentation request and the partial lifting of secrecy have added to opposition attacks and increased scrutiny of the party’s internal management.
El País reported that the PSOE’s federal executive met on Monday amid high political tension, with opposition parties using the latest developments to press the government.
For Pedro Sánchez, the challenge is to separate the government’s political agenda from ongoing court investigations. For opposition parties, the case has become part of a wider argument about accountability and institutional trust.
Why readers should treat the case carefully
The allegations are serious, but the case remains at the investigation stage.
No trial has taken place. No conviction has been made. Many details are still being tested through judicial procedures, and part of the file remains secret.
That makes careful language essential. The court is investigating alleged conduct. The people named in the case are under investigation, not found guilty.
New stage
The immediate next step is for parties in the case to study the parts of the file now available to them.
Further appeals, statements, document requests, or summonses may follow. The judge will also have to decide what happens to the section of the case that remains under secrecy once the current one-month period ends.
For now, the partial lifting of secrecy marks a new stage in the Leire Díez case. It moves part of the inquiry into the open, while leaving some of the most sensitive material still behind closed doors.