Sergio Poot v. Markwayne Mullin, et al.

District Court, C.D. California·Decided September 9, 2026·No. 5:26-cv-03321·Unknown

Opinion

UNITED STATES DISTRICT COURT CENTRAL DISTRICT OF CALIFORNIA SERGIO POOT, CASE NO. 5:26-CV-3321-CTS Petitioner, ORDER GRANTING PETITION FOR v. (A 246-057-132) MARKWAYNE MULLIN, et al., Respondents. On June 16, 2026, Petitioner Sergio Poot (“Petitioner”), represented by counsel, filed a Petition for Writ of Habeas Corpus (“Petition”). (Pet., ECF No. 1.) The Petition alleges that Petitioner is in the custody of the United States Department of Homeland Security (“DHS”), Immigration and Customs Enforcement (“ICE”) in Adelanto, California, and that he is being held in violation of the Constitution and laws of the United States. (See generally Pet.) The Petition names as Respondents Markwayne Mullin, Secretary, DHS; Rodney S. Scott, Commissioner, United States Customs and Border Protection (“CBP”); Jaime Rios, Acting Field Office Director for Los Angeles, ICE; Eddy Wang, Special Agent in Charge for Los Angeles, Homeland Security Investigations, ICE; Warden of Adelanto ICE Processing Center; and Does 1 through 10 (“Respondents”). (Pet. 1.1) On June 23, 2026, Respondents filed an Answer to the Petition. (Ans., ECF No. 7.) On June 25, 2026, Petitioner filed his Reply. (Rep., ECF No. 8.) For the reasons set forth below, the Court GRANTS the Petition and ORDERS that Petitioner be released immediately. The Petition alleges that Petitioner is a citizen and national of Mexico. (Pet. ¶ 57.) Petitioner has resided in the United States since the early 1990s, is the father of a United States citizen daughter, and has established substantial family, residential, employment, and community ties. (Id.) Petitioner’s daughter suffers from significant mental health challenges and depends on the support and presence of her father. (Id.) Prior to his detention, Petitioner resided openly in the United States. (Id. at ¶¶ 58–59.) Respondents do not claim that Petitioner poses a danger to the community or threat to public safety; his continued detention has been based exclusively upon allegations concerning flight risk. (Id.) On or about December 4, 2025, Petitioner was arrested by immigration agents in Lawndale, California. (Id. at ¶ 60.) DHS then initiated removal proceedings against him and charged him as inadmissible pursuant to 8 U.S.C. § 1182(a)(6)(A)(i) (present without having been admitted or paroled). (Id. at ¶ 61.) DHS did not charge Petitioner as removable based upon any criminal conviction or allege that he was subject to mandatory detention under 8 U.S.C. § 1226(c) or detention under 8 U.S.C. § 1231. (Id. at ¶ 62.) Initially, immigration authorities took the position that the Immigration Court lacked jurisdiction to consider Petitioner’s request for bond. (Id. at ¶ 64.) As a 1 Pinpoint citations refer to paragraphs and, where none, to the page numbers in the CM/ECF-generated headers of filed documents. result of litigation, Petitioner ultimately received an individualized custody redetermination hearing on December 31, 2025, before Immigration Judge (“IJ”) Mullins, who denied bond and continued detention. (Id. at ¶¶ 65–67; Ans. Ex. A, ECF No. 7-1 at 2.) At that hearing, IJ Mullins placed the burden on Petitioner to demonstrate that he did not present a risk of flight. (Pet ¶ 68.) Because the custody hearing sought through the federal litigation had been provided, Petitioner’s prior habeas proceedings were voluntarily dismissed, and Petitioner remained incarcerated. (Id. at ¶ 69.) On April 20, 2026, Petitioner’s request for a custody redetermination was denied when IJ Chan held that the Immigration Court did not have jurisdiction to hear Petitioner’s bond request. (Ans. Ex. B, ECF No. 7-1 at 5.) Approximately two months later, after more than six months of continuous detention, Petitioner appeared before IJ Flagg for a subsequent custody redetermination hearing; IJ Flagg stated that DHS bore the burden of justifying Petitioner’s continued detention by clear and convincing evidence.2 (Pet. ¶ 73; ECF No. 13-2, at 4.) This hearing was conducted pursuant to Rodriguez v. Holder, No. 2:07-cv-07-3239-TJH-RNB, 2013 WL 5229795 (C.D. Cal. Aug. 6, 2013), aff’d in part, rev’d in part sub nom. Rodriguez v. Robbins, 804 F.3d. 1060, 1086 (9th Cir. 2015), rev’d sub nom. Jennings v. Rodriguez, 583 U.S. 281 (2018). (Ans. 2.) In support of detention, DHS alleged that Petitioner posed a flight risk; DHS did not allege that Petitioner was a danger. (Pet. ¶ 73.) During the hearing, IJ Flagg relied on several border encounters occurring in approximately 1998 and 1999 and a history of unauthorized employment. (Id. at ¶¶ 74, 78.) Neither DHS nor IJ Flagg identified any evidence that Petitioner had failed to appear for immigration 2 The Petition alleges that the bond hearing before IJ Flagg occurred on June 15, 2026. (Pet. ¶ 73.) IJ Flagg’s order is dated June 18, 2026. (Ans. Ex. C., ECF No. 7-1 at 8–9.) It appears that the hearing was held on June 15 and the associated order issued on June 18. (ECF No. 13, at 2 n.1.) To avoid confusion, the Court will refer to the “June 2026 Bond Hearing.” proceedings, violated any prior order of supervision, attempted to flee from immigration authorities, or concealed his whereabouts from authorities. (Id. at ¶ 75.) Nonetheless, IJ Flagg concluded that Petitioner presents a flight risk that no condition or combination of conditions could reasonably mitigate and denied release. (Id. at ¶¶ 76–77.) Petitioner has now remained continuously confined for more than six months and his detention continues to cause significant hardship to himself, his family, and his United States citizen daughter. (Id. at ¶ 80.) Petitioner has retained counsel, expended considerable financial resources to pursue available forms of relief, appeared for all proceedings, and currently seeks affirmative relief from removal; Petitioner has a pending Application for Cancellation of Removal pursuant to INA § 240A(b) and a pending Application for Asylum and for Withholding of Removal. (Id. at ¶ 70.) The Answer does not set forth substantially different facts, but attaches orders from Petitioner’s three bond hearings: (1) IJ Mullin’s order dated December 31, 2025 (“Exhibit A”); (2) IJ Chan’s order dated April 20, 2026 (“Exhibit B”); and (3) IJ Flagg’s order dated June 18, 2026 (“Exhibit C”). (See Ans. 2–3; Ans., Exs. A through C, ECF No. 7-1.) On August 7, 2026, pursuant to Court orders (ECF No. 11–12), Respondents filed (ECF No. 13) copies of the transcripts of two of these hearings: (1) the December 31, 2025 hearing (ECF No. 13-1), and (2) the June 2026 Bond Hearing (ECF No. 13-2). Petitioner challenges his detention on four grounds: (1) Violation of the Fifth Amendment Due Process Clause (substantive) (Pet. ¶¶ 104–20); (2) Violation of the Fifth Amendment Due Process Clause (procedural) (id. at ¶¶ 121–36); (3) arbitrary and capricious continued detention (id. at ¶¶ 137–51); and (4) “habeas relief is presently available under 28 U.S.C. § 2241 because administrative review is inadequate to remedy Petitioner’s ongoing detention” (id. at ¶¶ 152–62). Writs of habeas corpus may be granted by the federal courts to noncitizens in the custody of immigration authorities. 28 U.S.C. § 2241(c)(3) (“The writ of habeas corpus” extends to individuals “in custody in violation of the Constitution or laws or treaties of the United States.”); Doe v. Garland, 109 F.4th 1188, 1194 (9th Cir. 2024) (holding that petition challenging alien’s detention without bond hearing fell within the “core of habeas”). The writ is “available to e

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Sergio Poot v. Markwayne Mullin, et al., (C.D. Cal. 2026).

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