Fifth Circuit Rules on Immigration Detention

Estimated Time to Read: 11 minutes

The U.S. Court of Appeals for the Fifth Circuit has issued one of its most significant immigration decisions in recent years, holding that the Fifth Amendment‘s Due Process Clause requires individualized bond hearings for certain illegal aliens held in prolonged immigration detention. The ruling does not invalidate federal immigration enforcement, nor does it require the release of detainees. Instead, it defines the constitutional limits on how long the federal government may continue mandatory detention without providing an opportunity to challenge continued confinement.

The decision comes less than a year after a major shift in federal immigration policy changed how certain illegal aliens are detained while awaiting removal proceedings. In a divided 2-1 opinion, the court concluded that although Congress possesses broad authority over immigration, that authority remains subject to the Fifth Amendment’s guarantee that no person shall be deprived of liberty without due process of law. Because immigration enforcement is carried out by the federal government, the case turns on the Fifth Amendment rather than the Eighth Amendment’s protections against excessive bail or the Fourteenth Amendment’s Due Process Clause, which applies to the states.

The opinion is likely to have immediate consequences for federal immigration enforcement throughout Texas, Louisiana, and Mississippi while adding another significant chapter to the ongoing national debate over the constitutional limits of prolonged civil detention.

What Prompted the Fifth Circuit’s Decision?

The case involved three illegal aliens who entered the United States without inspection more than a decade ago and remained in the country for years without lawful immigration status. None had criminal histories; each had established families in the United States, and each was detained by Immigration and Customs Enforcement following routine encounters with local law enforcement in Texas.

For nearly three decades, individuals in similar circumstances generally could request release on bond while their removal proceedings continued. That changed in 2025.

Following a new interpretation adopted by the Department of Homeland Security and later affirmed by the Board of Immigration Appeals as a part of the Department of Justice (DOJ), illegal aliens who entered the country without inspection became subject to mandatory detention under Section 1225(b)(2)(A) of the Immigration and Nationality Act, regardless of how long they had lived inside the United States. Under that interpretation, immigration judges no longer had authority to conduct bond hearings for this category of detainees.

After the three detainees challenged their confinement through federal habeas petitions, district courts ordered their release. The federal government appealed, leading to the Fifth Circuit’s decision.

What the Fifth Circuit Actually Held

The court’s ruling is considerably narrower than many early headlines suggested.

The Fifth Circuit did not hold that illegal aliens possess a constitutional right to bail. It did not prohibit mandatory immigration detention. It did not invalidate Section 1225 of federal immigration law. Nor did it require the release of every detainee awaiting removal proceedings.

Instead, the court held that once detention under this particular statutory provision extends beyond approximately 90 days, the Constitution requires the government to provide an individualized hearing before continued detention may occur. At that hearing, the government must articulate why continued detention remains necessary, whether because of flight risk, dangerousness, or another constitutionally sufficient justification.

The opinion makes equally clear that many detainees may remain in custody following those hearings. The decision guarantees an opportunity to challenge continued detention, not a guarantee of release.

Why the Fifth Amendment Controlled the Court’s Analysis

The majority grounded its decision almost entirely in the Fifth Amendment‘s Due Process Clause, which prohibits the federal government from depriving any person of life, liberty, or property without due process of law. Because immigration enforcement is a federal responsibility, the Fifth Amendment, rather than the Fourteenth Amendment, governs the constitutional analysis.

Likewise, the case does not concern the Eighth Amendment‘s prohibition on excessive bail. The court was not asked to determine whether a particular bail amount was excessive or whether detainees possessed a constitutional right to bail. Instead, it considered a narrower procedural question: whether prolonged mandatory detention may continue indefinitely without giving detainees an opportunity to challenge the government’s justification for continued confinement.

The majority answered that question in the negative. Although Congress may require mandatory detention during removal proceedings, the Constitution requires additional procedural protections once mandatory detention extends beyond what the court considered a presumptively reasonable period. The court relied on a long line of Supreme Court decisions recognizing that the Fifth Amendment protects “persons” physically present within the United States, regardless of immigration status. While Congress retains broad authority to regulate immigration, the majority concluded that statutory classifications cannot eliminate constitutional protections that exist independently of federal law.

Central to the opinion is the distinction between the government’s authority to detain someone and the procedures required to continue that detention. The majority emphasized that freedom from physical restraint has long been recognized as one of the Constitution’s most fundamental liberty interests. Government may restrict that liberty, but when detention becomes prolonged, due process requires some opportunity for individualized review.

The majority also relied on previous Supreme Court decisions recognizing dangerousness and flight risk as legitimate reasons to continue civil detention. What the Constitution requires, according to the court, is an opportunity for the government to demonstrate that those justifications actually exist in an individual case.

One of the most significant aspects of the decision is the court’s adoption of a 90-day presumptive deadline before an individualized bond hearing becomes constitutionally required. The majority did not describe that timeframe as arbitrary. Instead, it looked to existing Supreme Court precedent for guidance. The court noted that the Supreme Court has previously recognized presumptive constitutional timelines in other contexts, including a six-month presumption for certain post-removal immigration detention in Zadvydas v. Davis and a 48-hour rule for probable cause determinations following warrantless arrests.

The majority also relied on the Supreme Court’s discussion in Demore v. Kim, where the Court observed that most immigration removal proceedings historically concluded within approximately 90 days. Because mandatory detention was intended to cover only the period reasonably necessary to conduct removal proceedings, the Fifth Circuit concluded that 90 days represented a reasonable point at which additional procedural protections become constitutionally necessary.

Judge Cory Wilson sharply disagreed with that conclusion. His dissent argued that Congress never established a 90-day deadline and that the majority effectively created a new procedural requirement absent from the statutory text. In his view, the court substituted its own constitutional policy judgment for Congress’ legislative decision, making the 90-day benchmark one of the principal points of disagreement in the case.

The Dissent Warns Against Judicial Overreach

Judge Cory Wilson’s dissent reached a fundamentally different constitutional conclusion. While agreeing that Congress possesses broad authority over immigration, the majority viewed that authority as limited by the Fifth Amendment’s guarantee of due process. Judge Wilson, by contrast, argued that Congress had already determined the process due under Section 1225(b)(2)(A), and courts should not impose additional procedural requirements that lawmakers deliberately omitted from the statute.

The dissent emphasized that the three detainees were “applicants for admission” under federal immigration law, even though they had lived in the United States for many years. Because Congress classified them under Section 1225, Judge Wilson concluded that mandatory detention pending removal proceedings was precisely the outcome Congress intended. In his view, courts should not substitute their own procedural requirements for legislative policy judgments in an area where Congress possesses plenary constitutional authority.

Judge Wilson also challenged the majority’s reliance on dangerousness and flight risk. He argued those considerations are simply not part of Section 1225’s detention framework. Instead, detention turns on whether an individual is an applicant for admission who is not clearly entitled to enter or remain in the United States. Because dangerousness and flight risk are legally irrelevant under the statute, the dissent argued that hearings focused on those issues cannot be constitutionally required.

Perhaps the dissent’s strongest criticism concerned the 90-day rule itself. Judge Wilson argued that neither Congress nor the Supreme Court had ever established such a deadline for individuals detained under Section 1225. He viewed the majority’s timeline as a judicially created policy choice rather than a constitutional requirement rooted in statutory text or binding precedent.

The sharp disagreement illustrates that this case is not a straightforward dispute over immigration policy. It reflects two competing views of constitutional structure. The majority prioritized individual liberty and procedural due process. The dissent emphasized congressional authority over immigration and judicial restraint.

Policy Implications for Immigration Enforcement

The practical consequences of this decision could be significant.

The Fifth Circuit acknowledged that thousands of immigration detainees may now fall within the scope of its ruling following the federal government’s 2025 interpretation of Section 1225. Rather than requiring federal district courts to resolve thousands of individual habeas petitions, the court concluded that the executive branch should develop administrative procedures capable of providing the required hearings itself. If the decision remains in effect, ICE will likely need to dedicate substantial resources to conducting individualized custody hearings while continuing removal proceedings. The court did not prescribe the precise procedures that must be followed, leaving federal immigration officials considerable flexibility in designing a process that satisfies constitutional requirements.

The opinion also reinforces an important constitutional principle that extends beyond immigration law. Executive agencies may exercise broad authority delegated by Congress, but that authority remains subject to constitutional safeguards protecting individual liberty. Whether the issue involves immigration enforcement, administrative regulation, or another area of federal governance, the judiciary retains responsibility for determining whether executive action complies with the Constitution.

Because similar constitutional questions are already moving through the federal courts, including cases the U.S. Supreme Court has agreed to review involving prolonged immigration detention under other statutory provisions, this decision is unlikely to be the final word on the issue. Instead, it represents another step in the continuing development of immigration due process jurisprudence.

A Brief Texas Perspective

Although this case concerns federal immigration detention rather than Texas criminal law, it touches on a constitutional question familiar to many Texans following the debate over Proposition 3 and the state’s recent bail reform efforts.

Both discussions involve balancing legitimate public safety interests with procedural protections before the government may continue depriving someone of liberty. The legal frameworks, however, are fundamentally different. Proposition 3 addressed criminal pretrial detention under the Texas Constitution, while this case concerns civil immigration detention under the Fifth Amendment to the U.S. Constitution.

The Fifth Circuit did not question whether the federal government may detain illegal aliens during removal proceedings. Rather, it addressed what constitutional procedures must accompany prolonged detention. Whether one agrees or disagrees with the majority’s reasoning, the opinion illustrates the continuing tension between effective law enforcement and constitutional due process, a balance that courts and legislatures regularly confront across many areas of public policy.

The Bottom Line

The Fifth Circuit’s decision is one of the most consequential immigration rulings issued by the court in recent years.

It neither dismantles federal immigration enforcement nor creates a constitutional right to release from detention. Instead, the court held that while Congress may authorize mandatory detention during removal proceedings, the Fifth Amendment requires additional procedural protections once that detention extends beyond what the court considered a presumptively reasonable period. Under the majority’s framework, continued detention after approximately 90 days requires an individualized hearing where the government must justify why confinement should continue.

Whether that reasoning ultimately survives Supreme Court review remains uncertain. The vigorous dissent, the significance of the constitutional questions presented, and the existence of similar cases moving through the federal courts all suggest that further appellate review is likely.

For now, the ruling serves as a reminder that constitutional government requires more than effective enforcement of the law. It also requires adherence to the constitutional limits that govern how that enforcement is carried out. The Fifth Circuit’s opinion reflects an ongoing effort to balance two enduring principles of the American constitutional system: the government’s responsibility to enforce immigration law and the Constitution’s promise that liberty may not be deprived without due process of law.

---