Detained at the Border vs. ICE Detention: What’s the Difference?

People use the terms “detained at the border” and “ICE detention” interchangeably, but they are legally different situations with different agencies, different rules, and different options for release. Understanding the distinction matters because the legal rights you have and the paths to release depend on which type of custody you are in.

Here is a clear breakdown of what each means, who is in charge, and how the legal options differ.

Who Controls Custody at the Border?

When someone is apprehended at or near a U.S. border crossing, they are initially taken into custody by Customs and Border Protection (CBP). CBP is responsible for enforcing immigration law at ports of entry and between ports of entry along the border.

CBP custody is meant to be short-term. Under federal standards, CBP should not hold people for more than 72 hours. In practice, people are sometimes held for longer, particularly during periods of high volume or when transfer to other facilities is delayed.

During CBP custody:

• You are typically held in a CBP processing facility (sometimes called “hieleras” or “perreras” by those who have been through them)
• CBP officers make initial determinations about your case, including whether to place you in expedited removal proceedings
• You generally do not have access to a bond hearing while in CBP custody
• CBP officers are supposed to ask if you fear returning to your home country. If you express fear, you should be referred for a credible fear interview

What Is ICE Detention?

ICE (Immigration and Customs Enforcement) is a separate agency from CBP. ICE handles interior enforcement, meaning it is responsible for people already inside the United States, and it manages longer-term immigration custody.

When someone is transferred from CBP to ICE, or when ICE arrests someone in the interior of the country, they are placed in an ICE facility. ICE custody is where people typically remain while their immigration cases are processed through the court system.

During ICE custody:

• You may be eligible for a bond hearing before an immigration judge (depending on how you entered and your criminal history)
• You have the right to an attorney (at your own expense)
• You can file for immigration relief, including asylum, cancellation of removal, and other protections
• You have access to legal service provider lists maintained by the facility
• Your custody can last weeks, months, or in some cases years while your case moves through the immigration courts

Key Legal Differences

The distinction between CBP and ICE custody creates different legal consequences:

Expedited removal vs. regular proceedings. People apprehended by CBP at the border are frequently placed in expedited removal, which allows removal without a hearing before an immigration judge. People arrested by ICE in the interior may be placed in regular removal proceedings, which provide more legal protections, though ICE has increasingly attempted to use expedited removal for interior arrests as well.

Bond eligibility. People in CBP custody generally do not have access to bond hearings. Once transferred to ICE custody and placed in regular removal proceedings under INA Section 236(a), bond hearings may be available, depending on the circumstances of the case.

“Arriving alien” designation. People apprehended at a port of entry are classified as “arriving aliens” under immigration law. This classification carries a significant legal consequence: arriving aliens are generally not eligible for bond hearings before an immigration judge. Their only release mechanism is parole, which is at ICE’s discretion.

Credible fear screening. If someone in CBP custody expresses fear of returning to their home country, they are entitled to a credible fear interview. A positive finding moves them out of expedited removal and into regular proceedings. For people already in ICE custody who were placed in expedited removal, the same credible fear process applies, but the logistics and timing differ.

Where Are People Held?

CBP facilities are located at and near the border. In California, major CBP processing centers include facilities in San Ysidro, Otay Mesa (the port of entry side), Calexico, and various stations along the California-Mexico border.

ICE facilities are located throughout the state. As of 2026, California has eight active ICE facilities with a combined capacity of nearly 10,000 beds. These are concentrated in Kern County (Mesa Verde, Golden State Annex, Central Valley Annex, California City) and Southern California (Adelanto, Otay Mesa, Imperial Regional).

After initial processing by CBP, people are typically transferred to ICE custody within 72 hours. During this transfer:

• The person may be moved to a completely different part of the state or even out of state
• Family members may lose contact temporarily. The ICE detainee locator can help find someone after they are in ICE custody, but it may take 24 to 72 hours for the system to update
• Legal documents from CBP processing carry over to ICE custody, including any charges and credible fear referrals

What Are Your Rights in Each Type of Custody?

Regardless of whether you are in CBP or ICE custody, you have constitutional rights. You have the right to remain silent and do not have to answer questions about your immigration status. You can refuse to sign documents without understanding them. You can request an attorney.

If you are afraid to go back to your home country, say so clearly to trigger the credible fear screening process. You can contact your consulate. And both agencies are bound by constitutional limits on conditions of confinement.

What Should Family Members Do?

If a loved one has been taken into custody, whether by CBP at the border or ICE in the interior:

• Determine which agency has custody by calling both the local CBP station and the ICE field office
• Use the ICE detainee locator at locator.ice.gov once the person is in ICE custody
• Contact an immigration attorney as soon as possible. The legal strategy differs depending on which agency holds the person and what type of proceedings they are in
• Do not share information about the person’s immigration history with ICE or CBP agents without legal advice

Understanding the Difference Can Change the Outcome

The distinction between border custody and interior ICE custody is not just bureaucratic. It determines what legal protections apply, whether a bond hearing is available, and what forms of relief the person can pursue. If you or someone you know has been taken into custody, understanding which system you are in is the first step toward identifying the right legal strategy.

Contact the Law Office of Lina Baroudi. The right approach depends on the specific facts, and time in any form of immigration custody is time you cannot afford to waste.