ICE's Non-Detained Docket: A Structural Problem No Executive Order Can Fix

A new Congressional Research Service report published April 24 lays out the legal and operational realities of the ICE non-detained docket, and the picture it paints is one of a system under pressure it cannot fully absorb.

The report, titled "Immigration and Customs Enforcement (ICE) and the Non-Detained Docket (NDD)," arrives as the Trump administration pushes to detain as many removable non-citizens as possible. The tension between that political goal and the physical constraints of the immigration enforcement system is the central story the report tells.

What the Non-Detained Docket Actually Is

The NDD is, in plain terms, every person the U.S. government believes is a removable non-citizen who is physically present in the country and not currently held in ICE detention. It is not a backlog or a failure of enforcement, the report suggests. It is a structural feature of a system in which deportation proceedings involve millions of people and detention capacity runs to the tens of thousands.

ICE currently holds bedspace for roughly 70,000 individuals. The administration has considered expanding that to more than 90,000 in the current fiscal year. The NDD population runs into the millions. No realistic expansion of detention infrastructure closes that gap.

The Immigration and Nationality Act, codified in Title 8 of the U.S. Code, both requires DHS to detain certain categories of removable non-citizens and grants the agency discretion to release others who are in pending removal proceedings. That dual structure is the legal foundation on which the NDD rests. It is not a policy choice that can simply be reversed. It is baked into the statute.

The Administration's Posture and Its Limits

A January 2025 Executive Order directed DHS to "take all appropriate actions to detain, to the fullest extent permitted by law, aliens apprehended for violations of immigration law until their successful removal from the United States." The order is unambiguous in its intent: shrink the non-detained docket, expand ICE case management through detention rather than alternatives.

The results have been significant. The detained population surged by nearly 75 percent in 2025, reaching roughly 66,000 by December of that year, according to the American Immigration Council. Discretionary releases from detention fell by 87 percent by the end of November 2025.

But even at those numbers, the administration remains far short of the NDD's total population. The gap between enforcement ambition and enforcement capacity is not a matter of political will. It is a matter of beds, funding, and the sheer scale of non-detained immigration cases that have accumulated over years.

ICE's Non-Detained Docket and the Legal Gray Zone

The CRS report flags one of the more legally sensitive dimensions of the current enforcement posture. ICE officers are instructed to review for removal all cases that report to an Enforcement and Removal Operations field office for a check-in on the immigration enforcement docket. That instruction applies even to individuals who have been granted withholding of removal or protection under the Convention Against Torture.

Those protections were not granted administratively or informally. They were the product of adjudicated proceedings. Reviewing individuals who hold them for re-detention or removal raises due process questions that the report does not resolve but clearly flags as a concern for Congress.

The legal landscape around third-country removals has already produced litigation. The existence of that litigation, combined with the CRS report's framing of the CAT protection issue, suggests that the administration's approach to the NDD is likely to face continued legal scrutiny.

Alternatives to Detention: A Tool Under Pressure

ICE's Non-Detained Management Division oversees the Alternatives to Detention program, which uses GPS ankle monitors, the SmartLINK phone app, house arrest, and case management to track individuals on the NDD who are not detained. Under prior administrations, ATD was a central tool for managing the scale of the non-detained immigration cases without the cost and capacity constraints of physical detention.

Under the current administration's detention-first approach, the ATD program is likely to receive reduced emphasis, though the CRS report does not make a direct prediction on that front. What the report does make clear is that ICE case management through alternatives to detention has been a practical necessity, not an ideological preference, for agencies dealing with a population that detention infrastructure cannot accommodate.

What Congress Is Watching

The CRS report was published April 24, 2026, which places it squarely in the context of ongoing budget negotiations over ICE detention funding. Congress commissions CRS reports when it needs to understand the legal and operational dimensions of a policy area, and the timing here is not incidental.

Lawmakers on both sides of the aisle have questions about the NDD, though they arrive at those questions from different directions. For Republicans pushing the administration's enforcement agenda, the report's documentation of the gap between detention capacity and the NDD population is an argument for more funding and more beds. For Democrats raising due process concerns, the report's description of CAT and withholding-of-removal cases being reviewed for removal is a potential oversight target.

The report also has implications for any legislative effort to expand mandatory detention categories under the INA. If Congress were to move those goalposts, the bedspace problem would become even more acute unless accompanied by a substantial funding commitment for new detention facilities.

The Structural Reality

What the CRS report ultimately describes is a system that was never designed to detain its way out of a multi-million-person deportation docket. The INA creates a legal framework in which some detention is mandatory and some is discretionary, and in which the government must manage a large population of individuals in removal proceedings who are, by necessity, living in the community while their cases proceed.

The January 2025 Executive Order does not change that underlying architecture. It changes the posture of enforcement within it. The administration can push discretionary releases to near zero, expand detention capacity, and direct officers to scrutinize every NDD check-in. It cannot, without new legislation and funding on a scale Congress has not yet approved, eliminate the non-detained docket as a feature of the immigration enforcement system.

That is the core finding lawmakers will be sitting with as they work through the current budget cycle, and it is the reason this particular CRS report landed when it did.

The full report is available in PDF form through Congress.gov.

Access the Legis1 platform for comprehensive political news, data, and insights.