The Prosecutor's Office of the National Court in Spain has officially archived the proceedings related to the pendrive that former Socialist Party (PSOE) member Leire Díez submitted when she requested voluntary resignation from the party in June 2025. The pendrive was handed over to the government party and subsequently made available to the public prosecutor who sought to ascertain whether the contents held any significant penal relevance. Following a thorough report from the Central Operational Unit (UCO) of the Civil Guard, the prosecutors assessed the evidence and found no new developments or legal implications warranting further judicial action.

In June 2025, Leire Díez, who was once affiliated with PSOE, delivered the contents of her pendrive to the central leadership of the party as she exited the political organization. This action sparked curiosity and concern within the party and legal circles, as it suggested that there could be critical information pertaining to the political and legal landscape surrounding the PSOE. The subsequent investigation by the prosecutor's office was aimed at determining if there were any undisclosed details that could lead to criminal proceedings or have serious implications on public trust in the political party.

Ultimately, the documents reviewed by UCO failed to yield any substantial findings that would necessitate further actions. The decision to archive the case highlights the complexities involved in political investigations in Spain, dealing with both the legal and public perception domains. It also raises questions regarding the accountability and consequences within political parties when members decide to leave and potentially disclose damaging information.