New York authorities failed to honor 16,070 Immigration and Customs Enforcement detainers between Jan. 20, 2025, and Oct. 8, 2026, according to figures released Monday by the Department of Homeland Security. The agency said the cases were associated with 52,503 criminal charges and convictions, including 131 homicides, 132 kidnappings and 1,017 sexual offenses.

ICE detainers request that local authorities hold individuals suspected of being in the country illegally for up to 48 hours beyond their scheduled release so federal immigration officers can take custody. DHS said New York’s refusal to honor the requests has allowed individuals sought by immigration authorities to be released back into communities.

The criminal records associated with the unfulfilled detainers also include 9,502 assault charges, 4,324 drug offenses, 2,198 weapons offenses, 1,776 robberies, 1,631 burglaries and 1,561 driving under the influence offenses.

Homeland Security Secretary Markwayne Mullin criticized New York City Mayor Zohran Mamdani and Gov. Kathy Hochul, accusing them of obstructing federal immigration enforcement.

“We enforce these laws with no help from Mayor Mamdani and Governor Hochul,” Mullin said. “The Trump Administration is committed to protecting the American people in every city and every state, and we won't let sanctuary politicians stand in our way.”

DHS released the figures following several violent incidents in New York involving individuals the agency identified as illegal aliens. Last week, authorities alleged that an illegal alien used his vehicle as a weapon against ICE officers in New York City, prompting an officer to fire in what authorities described as an act of self-defense.

Less than a week earlier, two Dominican nationals accused of being in the country illegally allegedly stabbed an off-duty New York Police Department detective during an attempted robbery. DHS said both men had previously been arrested in New York and released before ICE could take custody through detainers.

The department also highlighted the case of a Honduran national who had been deported four times before being arrested in March on suspicion of pushing two people onto New York City subway tracks. One of the alleged victims was an 83-year-old Air Force veteran.

In another case cited by DHS, New York City's jail system declined an ICE detainer for a Mexican national charged with murder and arson in Queens County.

The department also referenced the 2024 murder of Georgia nursing student Laken Riley. ICE has said Jose Ibarra, a Venezuelan national who was convicted in Riley’s killing, had previously been arrested by NYPD officers in 2023 and released before an immigration detainer could be issued.

New York’s restrictions on cooperation with federal immigration authorities have been formalized through state law. Hochul signed legislation in May limiting local police departments’ cooperation with ICE, and the measure took effect Aug. 25.

The figures have renewed scrutiny of sanctuary policies that limit local cooperation with federal immigration enforcement. DHS argues that honoring detainers would allow ICE to take custody of individuals facing criminal allegations or with criminal convictions before they are released into the community.