The UN Independent International Commission of Inquiry on Ukraine concluded March 19 that widespread enforced disappearances and torture committed by Russia during its full-scale invasion of Ukraine constitute "crimes against humanity." The announcement marks a significant development, as crimes against humanity constitute one of the most serious classifications of international crimes.

Human Rights Watch (HRW) published a report March 19 urging Mexican authorities to conduct a "thorough" and "impartial" investigation into an apparent mass killing site outside the city of Guadalajara, in Jalisco state.

According to the report, a local collective called the Jalisco Search Warriors on March 5 uncovered uncovered the site on an isolated ranch, where they found "bone fragments…hundreds of shoes, clothing items, charred human remains, and three underground ovens on a ranch."  The discovery was made while attempting to locate missing individuals or their remains, with local citizens organizing the effort in the absence of a sufficient response by the authorities.

Human Rights Watch on March 13 criticized the proposed European Union "Returns Regulation" for undocumented migrants as "cruel and unrealistic" for allowing longer detention and harsher treatment.

The European Commission seeks to establish standardized procedures so that returns of migrants can be more efficient while still respecting fundamental human rights. The proposed rule provides mandatory forced return if the undocumented migrant does not cooperate with an EU member state in the return procedure. Additionally, individuals deemed security risks could be detained for more than 24 months with judicial authorization.

Amnesty International on March 19 condemned the Turkish government's detention of over 100 individuals, including Istanbul Mayor Ekrem İmamoğlu, calling it a severe escalation an ongoing crackdown on the political opposition. Amnesty's deputy regional director for Europe, Dinushika Dissanayake, characterized the government's actions as a severe intensification of the ongoing suppression of peaceful dissent, and the targeting of the main opposition party, the Republican People's Party (CHP). He said:

The New York Times reported March 17 that the United States is withdrawing from the International Center for the Prosecution of the Crime of Aggression (ICPA), created to hold Russia accountable for its invasion and seizure of territory in Ukraine. "The US authorities have informed me that they will conclude their involvement in the ICPA by the end of March," Michael Schmid, president of the European Union Agency for Criminal Justice Cooperation (EuroJust) told the Times.

Human Rights Watch (HRW) has called for an immediate investigation into the massacre of dozens of civilians in Burkina Faso's western city of Solenzo on March 10 and 11. In a March 14 statement, HRW noted video footage circulating on social media that implicates pro-government militias in the killings, raising serious concerns about accountability and civilian protection in a country already grappling with widespread violence and human rights abuses. The victims, many of whom belonged to the Fulani ethnic group, were targeted in what appears to be a reprisal attack amid ongoing counterinsurgency operations.

The Helsinki District Court in Finland on March 14 sentenced a 38-year-old man to life for committing war crimes in Ukraine. Voislav Torden, 38, a Russian-Norwegian better known as Yan Petrovskiy, was deputy commander of a neo-Nazi paramilitary unit called Rusich, which participated in Russia's first incursions into Ukraine in 2014. According to prosecutors, Petrovskyi was responsible for leading an attack on Ukraine's eastern frontier, which left approximately 20 Ukrainian troops dead. Petrovskyi was accused of ordering his men to carve Rusich's emblem into the chest of a wounded Ukrainian soldier. He was also charged for posing with a dead soldier's body for photos, which were later uploaded to social media.

Sudan instituted proceedings against the United Arab Emirates (UAE) before the International Court of Justice (ICJ) on March 6. The claim charges that the UAE has directly supported the paramilitary Rapid Support Forces (RSF) and its associated militia in West Darfur state, violating the Genocide Convention.

Sudan's claim against the UAE is based on weapons seized by the Sudanese Armed Forces in active war zones. Sudanese forces reportedly discovered several passports of Emirati nationals inside armored personnel carriers and 4×4 combat vehicles that originated in the UAE. According to Sudan, this reveals illegal military and logistical support that has allowed the RSF to commit genocidal acts in West Darfur, including the killings of civilians, and the deprivation of access to medical care and basic necessities.