Why Did New York Reject 16,000 ICE Detainers?

The Department of Homeland Security said on 12 October 2026 that New York jurisdictions had declined 16,070 ICE detainers between 20 January 2025 and 8 October 2026, covering noncitizens DHS associated with 52,503 criminal charges or convictions. The figure intensified a fight over sanctuary rules, but it does not mean 16,070 people were convicted of 52,503 crimes, and a detainer itself is a federal request rather than a new criminal sentence.

As of 13 October 2026, Tom Homan (opens in a new tab) was using the number to argue that local non-cooperation puts dangerous people back into communities, while New York officials defended limits on participation in federal immigration enforcement. Zohran Mamdani (opens in a new tab), New York City's mayor, has separately called for ICE operations in the city to end after a federal immigration operation in Marble Hill, Manhattan, left a man wounded on 8 October.

Why did New York reject 16,000 ICE detainers?

ICE detainers ask a jail or law-enforcement agency to notify federal immigration officers before a person is released and, in qualifying circumstances, to hold that person for up to 48 additional hours so ICE can assume custody. ICE's own guidance describes them as requests to another law-enforcement agency.

The new DHS total — recorded in the 16,070-detainer disclosure (opens in a new tab) — spans state and local jurisdictions across New York, not one decision by the governor or the New York City mayor. That matters for accountability. It would be inaccurate to assign all 16,070 refusals personally to Kathy Hochul or Mamdani without evidence tying each custody decision to them.

The federal position is that honoring detainers improves public safety by transferring removable noncitizens directly from local custody to ICE. Sanctuary jurisdictions answer that local officers must follow state and local law, court orders and constitutional limits, and that broad immigration cooperation can deter residents from reporting crimes or working with police.

What is an ICE detainer?

A detainer is not a conviction, arrest warrant or automatic order from a judge. It is an administrative request from ICE tied to federal immigration enforcement. Whether a local jail can or must honor it depends on the legal authority for continued custody and the rules governing that jurisdiction.

That distinction is important when reading DHS's 52,503 figure. The department described the people connected to declined detainers as associated with that many charges and convictions in aggregate. Charges are allegations until resolved, convictions are adjudicated findings, and one person can account for multiple entries. Collapsing those categories into "52,503 criminals" would overstate what the data says.

Homan's criticism fits Donald Trump's (opens in a new tab) wider argument that sanctuary policies obstruct removals. The strongest defense of the federal position is that a direct transfer from a jail can be safer than trying to locate the same person later in the community. The countervailing evidence is legal and civic: local governments say they have obligations beyond federal immigration priorities and must avoid unlawful detention.

What do Hochul and Mamdani say about ICE?

Mamdani's position became sharper after an 8 October immigration operation in Marble Hill, Manhattan, in which federal agents shot and wounded a man. At a city news conference that day, he called for ICE operations in New York City to stop. Reuters and AP reported the shooting and the dispute over what happened.

That Mamdani call after the Marble Hill shooting (opens in a new tab) should not be confused with authorship of every state or local detainer policy. Hochul, as governor, is a separate actor in the state-level dispute and is not being given an unsourced personal role in each rejected request here.

The contradiction is between two public-safety claims. Homan says sanctuary limits force ICE to conduct riskier street operations; city leaders say aggressive federal operations themselves create fear and danger. The measurable question for the state-repression (opens in a new tab) and rule-of-law records is not which slogan wins, but whether individual detentions, releases and uses of force comply with law and produce documented public-safety outcomes.

What happens next?

The next national political date is 3 November 2026, when immigration enforcement is expected to remain a major midterm issue. Before then, DHS can publish more granular detainer data and New York officials can identify which legal rule applied to specific refusals.

Aggregate totals show scale, but case-level records are needed to establish why each request was declined and what followed.

Questions people ask

Why did New York reject 16,000 ICE detainers?

New York jurisdictions operate under state and local limits on cooperation with federal immigration enforcement and must also comply with custody law. DHS says 16,070 detainers were declined from 20 January 2025 through 8 October 2026.

What is an ICE detainer?

It is an ICE request asking another law-enforcement agency for release notification and, in qualifying circumstances, up to 48 additional hours of custody for transfer. It is not itself a criminal conviction or a judge's warrant.

What do Hochul and Mamdani say about ICE?

Mamdani has called for ICE operations in New York City to stop after the 8 October Marble Hill shooting. Hochul is part of the wider state-federal dispute, but the 16,070 total should not be attributed personally to either official without case-specific evidence.