Human Rights Watch has called on Ricardo Couto, the interim governor of Rio de Janeiro, to enact legislation that would establish fully independent forensic services. The call highlights the ongoing struggle to ensure forensic work in the state is free from police influence, a factor that has consistently thwarted justice and perpetuated impunity. The organization emphasized that the current structure allows civil police significant control over forensic outcomes, which often undermines the objectivity and reliability of the findings.
Andrea Carvalho, a researcher in Brazil for Human Rights Watch, articulated the necessity for forensic services to operate independently. This independence would ensure forensic conclusions are based purely on scientific evidence, eliminating potential conflicts of interest or biases that can mar judicial proceedings. Carvalho noted that impartiality is crucial when investigations involve police killings, where the credibility of forensic evidence in court can significantly impact the pursuit of justice.
Despite similar issues being raised in other regions, Rio de Janeiro remains among a few states where forensic services are deeply intertwined with police authorities (JURIST). Human rights analysts have pointed out that this intertwined relationship constitutes a serious conflict of interest, particularly in cases involving police lethality. Critics fear that forensic experts might be pressured to tamper with or suppress evidence, resulting in police officers evading accountability for unlawful killings.
The criticisms extend beyond oversight flaws to include systemic scientific inadequacies within forensic investigations. Common investigative procedures, such as collecting gunpowder residue or conducting complete ballistic analyses, are routinely neglected. Additionally, autopsy practices have been flagged for failing to adequately document victims’ injuries or examine their clothing for evidence, weaknesses that fundamentally hinder the accuracy and usefulness of autopsy reports.
Historical instances underscore the detrimental consequence of compromised forensic investigations. A notably contentious case in 2007 involved a 17-year-old shot by police, where an autopsy later provided evidence conflicting with the police narrative of a “resistance killing.” The autopsy revealed multiple gunshots at varying distances, indicative of an extrajudicial execution. During the 2021 Jacarezinho Raid, foreign forensic experts highlighted further inconsistencies, particularly the omission of details essential to recreate the shooting circumstances, thus complicating the determination of the events leading to the victims’ deaths.
The ongoing situation accentuates the need for legislative reform, aiming to fortify forensic services’ autonomy in Rio de Janeiro. Such reform would not only strengthen the integrity of legal proceedings but also foster public confidence in the justice system’s impartiality.