Bolivian authorities have confirmed the arrest of Attorney General Roger Mariaca on suspicion of involvement in drug trafficking, money laundering and organised criminal activity, in a major law enforcement operation targeting an alleged criminal network operating within the country’s Public Prosecutor’s Office. The arrest marks a significant escalation in an investigation involving one of Bolivia’s most senior law enforcement officials and follows recent visa restrictions imposed on him by the United States over similar allegations.
The arrest was confirmed on Thursday by Bolivia’s Ministry of Government. Minister of Government Marco Antonio Oviedo announced that Mariaca was among 14 individuals detained during an operation aimed at dismantling what authorities described as a criminal organisation embedded within the Public Prosecutor’s Office. A formal complaint was reportedly filed against Mariaca under Article 132 of Bolivia’s Penal Code, which addresses organised crime, and Law 1008, the country’s legislation governing controlled substances and drug-related offences. Authorities also reportedly seized approximately $300,000 in cash from Mariaca’s residence as part of the investigation.
However, the circumstances surrounding Mariaca’s detention have raised questions about its legality. The Attorney General’s Office characterised the operation as a kidnapping and an unlawful detention, challenging the manner in which the country’s chief prosecutor was taken into custody. The matter was subsequently brought before a Bolivian court through an application under Article 125 of the country’s Constitution, which provides for an Acción de Libertad. The constitutional remedy allows individuals to challenge unlawful restrictions on their liberty and functions similarly to a habeas corpus petition in the United States. On Friday, the court rejected the petition seeking Mariaca’s release, allowing his detention to continue.
The arrest follows a series of allegations made by the US government against Mariaca and the imposition of visa restrictions just days earlier. In a statement issued by the US Department of State, Washington accused the Bolivian Attorney General of abusing his official position by soliciting and accepting bribes to facilitate drug trafficking and helping violent criminals evade prosecution. The US government maintained that the alleged conduct undermined democratic institutions and efforts to combat narcotrafficking and related criminal networks in the Western Hemisphere.
The visa restrictions were imposed under Section 7031(c) of the National Security, Department of State, and Related Programs Appropriations Act. The provision allows the US Secretary of State to declare foreign government officials and their immediate family members ineligible for entry into the United States where credible information indicates their involvement, directly or indirectly, in significant corruption or gross human rights violations. The measure is designed to hold foreign officials accountable for serious misconduct and prevent individuals implicated in corruption from accessing the United States.
US Secretary of State Marco Rubio subsequently welcomed Bolivia’s anti-trafficking actions in a public statement on Thursday, although he did not specifically refer to Mariaca’s arrest. The response indicated Washington’s support for efforts to address organised crime and drug trafficking in the region, against the backdrop of its wider efforts to strengthen cooperation with governments combating narcotics networks.
Mariaca, however, has rejected the allegations made against him by the United States, describing them as an attempt to exert political pressure in connection with investigations conducted by his office. His lawyer has stated that Mariaca intends to cooperate with the Bolivian investigation while insisting that his constitutional rights, including the right to due process, must be respected.
The case places Bolivia’s prosecutorial institutions under considerable scrutiny, particularly given the seniority of the official involved and the allegations that a criminal network may have operated from within the very institution responsible for investigating and prosecuting offences. The detention of 14 individuals, the reported recovery of substantial cash and the invocation of organised crime and controlled-substance legislation point to the scale of the investigation.
The developments also highlight the growing intersection between domestic law enforcement investigations and international anti-corruption measures. While Bolivia’s judicial proceedings will determine the criminal liability of Mariaca and the other individuals implicated, the US visa restrictions demonstrate how allegations of corruption and links to narcotrafficking can trigger diplomatic and financial accountability measures beyond national borders.
As the investigation progresses, the central questions will concern the extent of the alleged criminal network, the role of officials within the Public Prosecutor’s Office and whether the proceedings can establish accountability while safeguarding judicial independence and due process.
By FCCT Editorial Team
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