What happens in immigration detention — booking, bond hearings, detainee locator, conditions, contacting family
The procedural mechanics of ICE detention: booking and processing, ICE Detainee Locator (locator.ice.gov), the 48-hour ICE detainer rule, bond hearings under INA §236, mandatory detention categories, PBNDS 2011 detention standards, how to contact a detained person, and what rights detainees have to legal materials, calls, and consular access.
What happens in immigration detention
This page explains the procedural mechanics of ICE detention — what happens from the moment of arrest through bond hearing through removal proceedings or release. It is meant for family members trying to understand the system from outside, and for individuals trying to prepare for the possibility of detention. None of it is legal advice for a specific case; every individual’s situation depends on facts that only an attorney can fully evaluate.
If you are searching for a detained loved one right now, the ICE Detainee Locator is the first stop.
The arrest-to-detention sequence
The general sequence for an adult arrested by ICE on civil immigration grounds:
- Arrest — by ICE/ERO, HSI, CBP, or local police on an ICE detainer.
- Initial processing at the field office or holding facility — fingerprints, photo, biographic interview, criminal history check.
- Form I-213 (Record of Deportable/Inadmissible Alien) is created — the foundational document of the case.
- Custody determination — initial decision by ICE: release on own recognizance, release on bond, release on order of supervision (with ankle monitor or check-in requirements), or continued detention.
- Notice to Appear (NTA, Form I-862) — the charging document that initiates removal proceedings; specifies the grounds of removability.
- Transfer to detention facility — could be local field office holding, an ICE-contracted detention center, a private prison contract facility, or a local jail with ICE contract.
- Master calendar hearing — first court appearance, usually within 1-4 weeks.
- Bond hearing (if eligible) — usually shortly after detention begins; separate from removal proceedings.
- Individual merits hearing — substantive hearing on removal/relief, often months later.
- Final order — relief granted (stays in US), voluntary departure, or removal order.
The 48-72 hours after arrest are the most legally consequential. Decisions made then — whether to sign a stipulated removal, whether to request a bond hearing, whether to contest the NTA — heavily shape the rest of the case.
The ICE Detainee Locator
The ICE Online Detainee Locator System is the public-facing tool for finding a detained person. It updates within hours of intake (but not in real-time). To use it you need either:
- First name, last name, country of birth, and date of birth, or
- The person’s A-number (alien registration number, 8 or 9 digits starting with “A”)
If the person is not found:
- They may still be in initial processing (not yet entered in the system).
- They may be in CBP custody (different system; not in the ICE locator).
- They may be in a local jail under an ICE detainer (not yet transferred to ICE).
- The name may be misspelled or registered in a different format (consider name variations, accents, two surnames).
If the locator does not find them after 48-72 hours, contact the local AILA chapter, the state immigrant-rights organization, or call the ICE Detention Reporting and Information Line: 1-888-351-4024 (LCA = 1-855-448-6903 for low-income).
The ICE detainer rule and its limits
When a person is arrested by local police for any reason (DUI, traffic violation, more serious offense) and a fingerprint match with DHS produces an immigration “hit,” ICE may issue a detainer (Form I-247A) asking the local jail to hold the person for up to 48 additional hours after they would otherwise be released.
Several federal courts have ruled that holding a person on a detainer alone — without an accompanying judicial warrant — can violate the 4th Amendment. Notable cases:
- Miranda-Olivares v. Clackamas County, No. 12-cv-02317 (D. Or. 2014)
- Morales v. Chadbourne, 793 F.3d 208 (1st Cir. 2015)
- Roy v. County of Los Angeles, 2018 WL 914773 (C.D. Cal. 2018)
As a result, many jurisdictions now require ICE to present a judicial warrant before honoring a detainer. State and local “sanctuary” policies (sometimes called TRUST Acts) often limit detainer honor as a matter of state law. See your state’s law for the current rule.
Bond hearings
Most detained people in standard removal proceedings are entitled to ask for a bond hearing before an immigration judge under INA §236(a).
Eligibility:
- Most non-citizens in standard §240 proceedings: eligible
- “Mandatory detention” under §236(c) (certain criminal grounds, terrorism-related, certain prior removal): NOT eligible at most stages, but may be eligible under intervening Supreme Court cases (Jennings v. Rodriguez, Nielsen v. Preap) for specific procedural arguments
- Expedited removal under §235(b)(1): NOT entitled to bond hearing
- Arriving aliens at port of entry: NOT entitled to bond hearing
- Reinstatement of prior removal order under §241(a)(5): NOT entitled
The hearing:
- Held before an immigration judge
- The respondent bears the burden of proving they are (a) not a danger to the community, and (b) not a flight risk (Matter of Adeniji, 22 I&N Dec. 1102 (BIA 1999))
- Evidence is typically informal — letters of support, ties to community, employment history, family in US, no prior immigration violations
- Bond amount: $1,500 minimum (statutory floor), typically $5,000-$15,000 for routine cases, higher for cases with criminal history or strong removal exposure
- Bond is posted at the ICE office or via a bond agent; refunded at end of case (assuming compliance with all hearings)
If a bond hearing results in continued detention or a high bond, an appeal to the Board of Immigration Appeals is possible — and the conditions can sometimes be revisited at a “change in circumstances” hearing.
Detention conditions and rights
ICE facilities operate under several layered standards:
- Performance-Based National Detention Standards (PBNDS 2011) with revisions — for adult detention
- Family Residential Standards (FRS 2020) — for family detention
- National Detention Standards (NDS 2019) — for local-jail facilities under ICE contract
These standards cover:
- Medical care — initial screening, ongoing care, mental health, dental
- Legal access — law library, attorney visitation (priority), legal mail (un-opened)
- Telephone access — at least reasonable hours, calls for legal/consular purposes
- Recreation — at least 1 hour of outdoor recreation per day
- Religious accommodation — religious services, dietary accommodation
- Grievance procedures — formal complaint mechanism, escalation to DHS
- Disciplinary proceedings — due process before sanctions
- Vienna Convention — right to consular notification and access for foreign nationals
Compliance varies. The DHS Office of Inspector General publishes audits identifying problems at specific facilities. Detainees and their families can file complaints with:
- DHS Office for Civil Rights and Civil Liberties (CRCL) — dhs.gov/file-civil-rights-complaint
- DHS Office of Inspector General (OIG) — oig.dhs.gov
- ICE Health Service Corps — for medical-care issues
How to support a detained person from outside
- Find them on the locator and confirm facility location.
- Hire or find an attorney immediately — see right to an attorney and find pro-bono help.
- Add money to their commissary account if possible — facility-specific systems (GTL, Smart Communications, JPay).
- Notify their consulate — every consulate has obligations under the Vienna Convention. See consulates by country.
- Gather supporting documents for bond hearing — proof of US ties, employment, family relationships, prior good conduct.
- Document the facts of arrest and detention while fresh.
- Contact rapid-response networks — many states have rapid-response hotlines specifically for raid response and detention support.
Related information
- Right to an attorney
- Right to remain silent
- Family preparedness plan
- How to find pro-bono legal help
- How to find an immigration attorney
- Immigration court by state
- USCIS notice codes
- Consulates by country
Last verified: 2026-05-25. General information, not legal advice. Detention rules, bond eligibility, and facility standards vary by case and jurisdiction. For any specific case, contact a licensed immigration attorney or BIA-accredited representative immediately.
Frequently asked questions
How do I find someone who has been detained by ICE?
What is an 'ICE detainer' and how does it work?
When can I get a bond hearing?
What detention standards apply to ICE facilities?
Can a detained person call their family?
The rules change. Hear about it first.
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General information, not legal advice. MigrantUSA is an independent publisher and is not a law firm; using this site does not create an attorney-client relationship, and this content is not a substitute for advice from a licensed attorney about your specific situation. US federal, state, and local government procedures, fees, and forms change. Always verify current details directly with the relevant agency before acting. For immigration, tax, or other legal matters specific to your situation, consult a licensed attorney or BIA-accredited representative.
