ICE Detention Lawyer in California

California detention has expanded rapidly. Between 2023 and 2025 the state's ICE detainee population grew by more than 160 percent, and by mid-2026 eight private contract facilities hold roughly 5,300 people on any given day. When bond is denied, when custody stretches past what the law allows, or when a facility is far from family and counsel, a federal habeas corpus petition may be the fastest path to meaningful review for someone detained by ICE in California.

Where are ICE detainees held in California?

Enforcement across California is split among the ICE Los Angeles, San Francisco, and San Diego Field Offices. As of 2026, eight active immigration detention facilities operate in the state, all run by GEO Group, CoreCivic, or Management and Training Corporation under contract with ICE:

• California City Detention Facility, opened by CoreCivic in August 2025 with a capacity of 2,560 beds. It is now the largest ICE detention facility in the state and the subject of detainee lawsuits alleging sewage leaks, insect infestations, and inadequate medical care.
• Adelanto ICE Processing Center in San Bernardino County, operated by GEO Group with a maximum capacity of 1,940 and a contractual guaranteed minimum of 640 beds. Adelanto is among the most heavily scrutinized ICE facilities in the country.
• Desert View Annex in Adelanto, adjacent to the main Adelanto facility, also operated by GEO Group with a capacity of 750 beds.
• Mesa Verde ICE Processing Center in Bakersfield (Kern County), operated by GEO Group with 400 beds.
• Golden State Annex in McFarland, operated by GEO Group with a capacity of 560 beds.
• Central Valley Annex in McFarland, activated by GEO Group in April 2026 with a capacity of 700 beds. It is adjacent to the Golden State Annex and brought Kern County's ICE detention capacity to nearly 5,000 beds.
• Otay Mesa Detention Center in San Diego, operated by CoreCivic. A federal court ordered access for county health and safety inspections in mid-2026 after ongoing lawsuits about conditions.
• Imperial Regional Detention Facility in Calexico, operated by MTC with a capacity of 640 beds.

The California Department of Justice reported six detainee deaths across California facilities between September 2025 and March 2026, the highest number since state-authorized inspections began in 2017. That documented record has become part of the factual foundation for many habeas filings.

Common California detention scenarios where habeas may help

Most habeas petitions we file for people detained by ICE in California fall into a few recurring patterns:

• Prolonged detention past six months. A person has been held for many months without a meaningful review of whether continued custody remains justified.
• Denied bond hearings under mandatory detention. ICE has classified the person as subject to mandatory detention under INA § 236(c), leaving no route to bond before an immigration judge. See our overview of mandatory detention challenges.
• Post-final-order detention. A removal order has been entered, but ICE cannot actually carry out removal, and detention continues without a lawful basis under Zadvydas v. Davis.
• Conditions of confinement. California AG reports have documented use-of-force concerns, medical care failures, and unsafe living conditions at multiple facilities. When conditions rise to constitutional violations, habeas can address them alongside detention itself.
• Transfers within California. ICE moves people among Adelanto, Mesa Verde, Golden State, Otay Mesa, and other sites, sometimes shifting which federal district has jurisdiction. Filing quickly can preserve the more favorable forum.

Each is a distinct fact pattern where a federal habeas petition under 28 U.S.C. § 2241 may reset the review process. Which one fits depends on the specific timeline and record.

How the Ninth Circuit shapes California habeas cases

California sits within the Ninth Circuit Court of Appeals, which has historically been one of the most active federal courts on immigration detention. Ninth Circuit precedent has addressed the length of detention, the availability of bond hearings, and the burden of proof required to keep someone in custody. That case law still shapes how district judges in California evaluate habeas petitions today.

The legal landscape has changed since 2018, when Jennings v. Rodriguez narrowed statutory arguments for automatic bond hearings after six months. But the Supreme Court left constitutional due process arguments open, and Ninth Circuit district courts continue to grant relief when the record shows prolonged detention without meaningful review. See our overview of prolonged detention challenges for how these arguments are framed today.

The Ninth Circuit context matters in practice because California district judges tend to be familiar with detention issues, willing to schedule expedited briefing when facts warrant, and receptive to well-documented petitions. That does not guarantee an outcome, but it does mean that the fact-development work families and counsel do before filing has real weight.

Bond hearing vs. habeas petition in California

An immigration court bond hearing and a federal habeas petition are two different tools. Bond hearings happen inside the immigration system before an immigration judge and address only whether the person can be released. Habeas petitions are filed in federal district court under 28 U.S.C. § 2241 and ask an Article III judge to review whether the immigration detention itself is constitutional and statutorily authorized.

The two tracks often work in sequence. When ICE argues that a person is subject to mandatory detention with no right to a bond hearing, habeas is frequently the only remaining avenue. When bond has been denied and detention has already stretched for months, habeas can force a second look under a different legal standard. Our guide comparing habeas corpus and immigration bond hearings walks through when each tool tends to fit for someone detained by ICE in California.

What families should do first

The first hours after a California ICE arrest or transfer set the tone for everything that follows. Concrete steps:

• Locate the person immediately. The ICE Online Detainee Locator is the fastest starting point. If the person cannot be found there, contact the facility directly and check daily for transfers between California sites.
• Preserve every ICE document. Notice to Appear, ICE detainer, ERO letters, and any paperwork received at check-in appointments all matter.
• Pull together identity, immigration, and community-ties records. Passport, birth certificate, A-number, prior immigration filings, tax returns, lease or mortgage, U.S. citizen family relationships, employment records, and medical documentation for the detainee or dependents.
• Do not sign anything without legal review. ICE officers sometimes present documents at check-ins or facility interviews that waive rights or agree to removal. Ask for a written copy and consult counsel before signing.
• Move fast on legal representation. Federal habeas timelines can be short, and a petition filed before a transfer may preserve the current federal district's jurisdiction.

If your loved one is detained by ICE in California, a federal habeas corpus petition may be the most effective legal tool available. Unlike immigration court proceedings, habeas petitions are filed in U.S. District Court before an independent federal judge — not a government employee.

We handle complex cases, including:

Which federal court handles California habeas cases?

California has four federal judicial districts, and the correct district for a habeas petition generally depends on where the detainee is being held.

The Central District of California covers Los Angeles, Riverside, and Santa Ana, with jurisdiction over Adelanto ICE Processing Center and Desert View Annex. The Central District handles a substantial share of California habeas petitions and has developed an active body of detention case law.

The Eastern District of California covers Sacramento, Fresno, and the Central Valley, with jurisdiction over Mesa Verde ICE Processing Center in Bakersfield, Golden State Annex and Central Valley Annex in McFarland, and California City Detention Facility. With California City now the largest ICE detention facility in the state and Kern County's total detention capacity approaching 5,000 beds, the Eastern District has become one of the busiest forums for California habeas litigation.

The Southern District of California covers San Diego and Imperial County, with jurisdiction over Otay Mesa Detention Center and Imperial Regional Detention Facility. Its proximity to the border and its Otay Mesa docket make it a specialized forum for detention and conditions-of-confinement cases.

The Northern District of California covers San Francisco, Oakland, and San Jose. While fewer active detention facilities fall within this district, ICE transfers into or out of the district do occur, and the Northern District has produced influential habeas decisions on prolonged detention.

All four districts fall under the Ninth Circuit Court of Appeals, based in San Francisco, which has one of the most extensive bodies of immigration detention case law in the federal system. Filing procedures for each district are published on the ICE Detention Facility Locator and on each district's court website.