Brazil’s public security constitutional amendment faces crucial vote this week in chamber after 10 months of intense negotiations

After nearly a year of intricate negotiations, Brazil’s Chamber of Deputies is poised for a decisive vote this week on the Public Security PEC (Proposed Constitutional Amendment). The measure, initially submitted by the Executive to Congress, has undergone extensive deliberation, moving through a special commission and now nearing a plenary vote that could reshape the nation’s approach to crime and punishment.

The legislative calendar is set for a pivotal moment on Wednesday, October 4, 2025. Lawmakers are scheduled to first consider the proposal within the special commission in the morning, followed by a full vote in the House’s plenary session later in the afternoon.

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This timeline, agreed upon by political leaders across the spectrum, indicates a unified commitment to advancing the critical security agenda, despite ongoing ideological differences on specific provisions.

Crucial vote looms amid negotiation deadlock

The upcoming vote marks the culmination of protracted discussions surrounding the public security initiative. While there is broad consensus on the need to address Brazil’s persistent security challenges, a key contentious point remains the proposal to reduce the age of criminal majority.

Left-wing caucuses, including parties like PSOL and PT, maintain their staunch opposition to lowering the age, arguing against the efficacy and fairness of such a measure. Their resistance underscores the deep divisions that persist despite the agreed voting schedule, setting the stage for potentially dramatic debates.

Debating the age of criminal majority

A central point of contention in the PEC is the provision to reduce the age of criminal majority to 16 years for violent crimes. This specific amendment has been championed by the rapporteur, Deputy Mendonça Filho (União-PE), who argues it aligns with a pressing societal demand for stronger accountability.

Mendonça Filho indicated that he intends to keep this controversial clause in his final report, framing it not as a novel concept but as a response to public sentiment. To mitigate some concerns, his proposal includes provisions for a national referendum on the issue in 2028 and mandates that any convicted individuals under 18 serve their sentences in facilities separate from adults aged 18 and over.

Before the crucial votes, Mendonça Filho plans to engage with left-wing leadership on Tuesday, October 3, 2025, to seek common ground. While acknowledging the resistance from some parties, he noted that center and right-wing blocs are “very satisfied and agreed” with the current draft, signaling a robust base of support for his proposals.

Relator’s firm stance and compromise efforts

Deputy Mendonça Filho has publicly reiterated his commitment to maintaining the reduction of the age of criminal majority within the PEC text. His insistence, he stated after a leadership meeting on Thursday, September 26, 2025, reflects what he perceives as a significant “social clamor.”

Conversely, the government’s leader, José Guimarães (PT-CE), has advocated for the removal of the contentious provision from the bill. He emphasized that negotiations are ongoing, with the Minister of Justice actively coordinating discussions with Deputy Mendonça Filho. Guimarães expressed optimism about reaching a constructive agreement, highlighting the government’s continued pursuit of consensus.

Progression of sentence: new restrictions proposed

Beyond the debate on criminal majority, the rapporteur’s final opinion is also expected to introduce significant changes concerning penal progression. The proposed amendments aim to tighten access to this right, specifically targeting leaders of highly harmful criminal factions and individuals convicted of femicide.

These restrictions seek to enhance the severity of penalties for offenders deemed to pose the highest threat to public safety and societal well-being. By limiting sentence progression for these categories, the PEC intends to address critical areas of public concern regarding organized crime and gender-based violence, reinforcing the justice system’s punitive functions.

Background and legislative journey of the PEC

The Public Security PEC originated from the Ministry of Justice and Public Security, designed as a direct governmental response to a high-profile police operation in Rio de Janeiro in October 2024, which resulted in 121 fatalities. This event underscored the urgent need for comprehensive reforms to Brazil’s security framework.

The constitutional amendment proposal formally reached Congress in April 2025, where it swiftly received initial approval from the CCJ (Constitution, Justice, and Citizenship Committee). Despite its rapid start, the PEC then encountered a standstill in the special commission, where it has remained for several months while negotiations unfolded.

For the PEC to become law, it must first secure approval from this special collegiate body, followed by a vote in the plenary of the Chamber of Deputies. Should it pass these stages in the lower house, the proposed amendment would then proceed to the Senate for further deliberation and eventual ratification.

Initial hurdles and executive priorities

Designated as a priority for the current administration, the Public Security PEC has not been without its critics. Early versions of the text faced significant opposition from a segment of state governors and opposition parties, leading to substantial revisions during its initial passage through the CCJ.

One notable change involved the removal of a provision that would have granted the Union exclusive authority to legislate on “general norms of public security, social defense, and the penitentiary system.” This alteration reflected efforts to decentralize legislative power, addressing concerns about federal overreach and respecting the autonomy of states in managing their security apparatus.