An ICE detainer is a request that a jail hold a person for up to 48 hours so immigration officers can decide whether to take custody; an arrest warrant is a document that authorizes an arrest. The two are often confused, and the confusion matters, because a detainer is not signed by a judge, does not decide anyone’s immigration case, and is not a removal order. Here is how detainers, administrative warrants, and judicial warrants differ, and what each one means for a family dealing with an arrest in Florida.
The short version
A detainer (Form I-247 family) is a request from ICE to a jail or other local agency to notify ICE before release and to keep the person for a short time so ICE can take custody. An ICE administrative warrant (Form I-200 or I-205) is signed by an immigration officer, not a judge. A judicial warrant is signed by a judge or magistrate. None of these is a final decision that someone will be deported.
Key Takeaways
- Under the federal regulation, a detainer is a request. It asks the agency holding the person to tell ICE before release and to hold the person for up to 48 hours, not counting weekends and holidays.
- Administrative warrants are signed by immigration officers, while judicial warrants are signed by judges. That difference drives what officers may and may not do, especially at a home.
- A detainer does not decide the immigration case. Whether the person can stay depends on the facts, and there may be bond, defenses, or other relief.
What is an ICE detainer?
The regulation that governs detainers is 8 CFR 287.7. It describes a detainer as a notice, issued on Form I-247, that a DHS officer may send to another federal, state, or local law enforcement agency. The notice asks that agency to advise DHS before it releases the person, so DHS can arrange to take custody. When DHS issues a detainer for someone the agency is not otherwise holding, the regulation provides that the agency should keep the person for up to 48 hours, and Saturdays, Sundays, and holidays do not count toward that time.
The people who can issue detainers are immigration officers such as deportation officers, special agents, and immigration enforcement agents, along with their supervisors. A judge does not review a detainer before it is issued. That is the first big difference from a judicial warrant.
In practice, a detainer usually shows up when someone is arrested by local police or booked into a county jail for something unrelated to immigration, and ICE learns about it through fingerprint checks. If you are trying to find a relative in that position, our guide to searching for someone held on an ICE detainer in Florida walks through the county jail and ICE locator searches.
What is an ICE administrative warrant?
An administrative warrant is the paperwork immigration officers use to arrest a person themselves. There are two forms you may hear about. Form I-200 is a warrant of arrest, which the regulations describe in 8 CFR 236.1 and which is used for people ICE believes are in the country in violation of immigration law. Form I-205 is a warrant of removal, which is used when a person already has a final order of removal, under 8 CFR 241.2.
Both forms are signed by an authorized immigration officer. Neither is signed by a judge. That is why they are called administrative: the agency is authorizing its own officers, rather than a court deciding that there is probable cause.
A detainer and an administrative warrant are different documents with different jobs. The detainer is addressed to the jail and asks for notice and a short hold. The administrative warrant is the officer’s own authority to make an arrest. They are sometimes issued together for the same person, but one does not turn into the other.
What is a judicial warrant, and why does the difference matter?
A judicial warrant is signed by a judge or magistrate judge after a showing of probable cause. It can authorize a search of a place, such as entering a home, and not only an arrest. Immigration enforcement is largely a civil system, so officers usually do not carry judicial warrants, and the administrative forms above are what most families will see.
The distinction becomes important at the front door. As summarized in a FactCheck.org review of the 2026 debate, the Congressional Research Service has explained that an administrative warrant does not by itself give officers authority to enter a home or other private area. DHS has taken the position that administrative warrants can be used to enter a home to arrest someone with a final removal order, a position that critics dispute and that courts have not fully resolved. Because this area is contested and changing, we do not tell families that any single rule always applies. What happened at the door, in writing and in person, can matter later, so write down what you remember as soon as you can.
Does a detainer mean the jail has to hold my loved one?
As a matter of federal regulation, a detainer is described as a request, and the 48-hour period is a limit on how long the request runs. Whether a particular Florida jail honors it is a separate question, because state law also plays a role. Florida’s immigration cooperation statute, Chapter 908 of the Florida Statutes, directs local law enforcement agencies to support federal immigration enforcement, including responding to detainer requests. Many Florida agencies also participate in 287(g) agreements. Our explainer on whether Florida is a sanctuary state and how 287(g) works covers that background.
In real life, then, families in Florida should plan on the assumption that a jail will cooperate with a detainer. The legal arguments about holds that exceed the regulation or that lack a proper basis are real, but they are questions for a lawyer reviewing the specific paperwork, not something to count on at the jail window.
What does a detainer not do?
A detainer does not order anyone removed. It does not decide whether the person has a right to stay. It does not cancel pending criminal charges; the person usually still has to resolve the local case, and the criminal outcome can affect the immigration case in both directions. It also does not mean the person is automatically ineligible for release from ICE custody later. Whether a bond hearing is available, and on what terms, depends on the person’s history and how they entered the country. Our guide to what an immigration judge does explains where an immigration case goes once it reaches court.
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What are the options once a detainer is lodged?
Once ICE takes custody, the realistic ways to seek release are a bond hearing, a habeas corpus petition, or parole. Which of these, if any, is available depends on the legal basis for the detention and on the person’s criminal and immigration history. We do not give families a universal deadline or a one-size-fits-all first step. The wrong filing at the wrong time can create new problems, which is why the facts need to be reviewed first.
What you can do right away is gather information. Collect the person’s full name, date of birth, country of birth, A-Number if there is one, the arrest date, the jail, and any case number. Keep copies of any papers the person was given. If there is a final order of removal in the past, tell us that up front, because it changes the analysis. For someone already in removal proceedings, a stay of removal is a different tool for a different stage, and it is not a substitute for dealing with the detention itself.
Frequently Asked Questions
Is an ICE detainer the same as an arrest warrant?
No. A detainer is a request to a jail to notify ICE before release and to hold the person for up to 48 hours, excluding weekends and holidays, as set out in 8 CFR 287.7. An arrest warrant authorizes an arrest. ICE administrative warrants are signed by immigration officers, while judicial warrants are signed by judges.
Does an ICE detainer mean my relative will be deported?
No. A detainer is not a removal order and does not decide the immigration case. Whether a person can stay depends on the facts, and there may be bond, defenses, or other relief.
Can ICE enter my home with an administrative warrant?
This is contested. The Congressional Research Service has said an administrative warrant does not by itself authorize entry into a home, while DHS takes the position that it may be used to enter a home to arrest someone with a final removal order, as discussed by FactCheck.org. Courts have not fully settled the question, so tell us exactly what happened and show us any papers.
What should I bring or send when I ask for help?
The person’s full name, date of birth, country of birth, A-Number if known, the arrest date and jail, any case number, and copies of any detainer, warrant, or notice. Then call us at (407) 917-2087.
How We Can Help
We help families in Central Florida make sense of detainers, warrants, and detention, and we look at the actual paperwork before telling you what we think it means. Call us at (407) 917-2087 or start with the pre-evaluation above; we review the facts and tell you honestly whether we can help. Our founding attorney Denisse Ilabaca is Board Certified in Immigration and Nationality Law by The Florida Bar, a distinction held by fewer than two percent of Florida attorneys.
This article is general information, not legal advice, and reading it does not create an attorney-client relationship. Immigration law changes often, and every case turns on its own facts. Ilabaca Law, PLLC, 300 N Ronald Reagan Blvd, Suite 305, Longwood, FL 32750. Attorney advertising.