Paraguay's Prosecutor General, Emiliano Rolón, ordered, through Resolution FGE No. 1652 of May 18, a change in command of the Specialized Unit for Economic Crimes and Anti-Corruption (UDEA) and the Money Laundering Unit. Deputy Prosecutor Nancy Graciela Salomón Marín takes over both units, replacing María Soledad Machuca Vidal, who was transferred to the Transitional Criminal Unit of Asunción, the Criminal Execution Units nationwide, and the specialized units for Human Rights, Diffuse Interests, and Indigenous Peoples' Rights, as well as the Environmental Crimes Unit (Asunción and Central), previously under Salomón's responsibility. The changes take effect on May 26.
Machuca is the target of a proceeding before the Jury for the Prosecution of Magistrates (JEM), opened in October 2023 by deputies Leidy Paola Galeano and Patricia Alexandra Senna of the National Crusade Party, under the sponsorship of lawyer Federico Campos López Moreira. They accuse her of allegedly having shelved, since mid-2022, a complaint against then-deputy Hernán Rivas, which questioned the authenticity of his law degree. The complaint was filed on June 11, 2020, by the Association of Lawyers and Auxiliaries of Criminal Justice, but did not advance due to alleged non-compliance with formal requirements. Senator Yolanda Paredes classified Machuca as "the black monk of the Public Ministry."
In August 2025, the JEM was close to dismissing the accusation against Machuca, but Supreme Court Justice Manuel Ramírez Candia requested a suspension of the vote, citing doubts about the opinion of the body's Legal Affairs Directorate. Since then, the case has not been resumed. The original complaint against Rivas, which only resulted in a formal investigation in January 2024 and an indictment in July 2024, was eventually provisionally archived. Rivas, who took office as a representative of the Chamber of Deputies in the JEM in June 2020 with only a law degree—his registration was only issued by the Supreme Court in July 2021—is under investigation for alleged use of a false document.