Alpha Ousmane Diallo v. JL Jamison, in his official capacity as Warden, Federal Detention Center, Philadelphia, et al.

District Court, E.D. Pennsylvania·Decided August 28, 2026·No. 2:26-cv-04895·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE EASTERN DISTRICT OF PENNSYLVANIA

ALPHA OUSMANE DIALLO, CIVIL ACTION

Petitioner, NO. 26-4895-KSM v.

JL JAMISON, in his official capacity as Warden, Federal Detention Center, Philadelphia, et al.,

Respondents.

MEMORANDUM MARSTON, J. AUGUST 28, 2026 The Executive Branch of the U.S. Federal Government has significant, and near plenary, authority with respect to the immigration laws of this Country. But that authority only exists when the Executive Branch faithfully follows the laws that Congress has passed, its own agency opinions and procedures, and the U.S. Constitution. Because the Federal Government has failed to do so here, and, as a result, has improperly detained Petitioner Alpha Ousmane Diallo for more than six weeks, the Court will grant his Petition for a Writ of Habeas Corpus (Doc. No. 1). I. FACTUAL BACKGROUND Diallo is a citizen and native of Guinea who first arrived in the United States in May of 2003. (Doc. No. 1 ¶ 8.) On February 20, 2004, Diallo was issued a Notice to Appear (“NTA”) in Immigration Court. (Doc. No. 8-3.) The NTA charged him with being inadmissible under Section 237(a)(1)(A) of the Immigration and Nationality Act (“INA”). (Id.) Diallo then appeared before an Immigration Judge on March 31, 2005, at which time he sought both asylum and withholding of removal to Guinea. (Doc. No. 1 at 16.) The Immigration Judge denied Diallo’s request for asylum, granted his request for withholding of removal to Guinea, but failed to issue a final order of removal for Diallo. (Id.; Doc. No. 14 at 1–2.) For the next 21 years, Diallo established community in the U.S. and has no criminal record1. (Doc. No. 1 ¶¶ 17-21.) He is the father of four U.S. citizen children, and lives with

their mother, a lawful permanent resident, in Philadelphia. (Id. ¶¶ 8, 19–20.) And he has a valid employment authorization to work in the U.S. (Id. at 17–18.) But, on July 13, 2026, shortly after dropping his children off at school, he was taken into custody by agents of the U.S. Immigration and Customs Enforcement (“ICE”) and charged with being unlawfully present in the United States. (Id. ¶ 24.) He was then brought to, and still currently remains at, the Federal Detention Center, Philadelphia (“FDC”) in the custody of the U.S. Department of Homeland Security (“DHS”). (Id. ¶ 1.) II. PROCEDURAL HISTORY The day after Diallo was detained, he filed the instant petition arguing that his detention is unlawful under the Due Process Clause of the Fifth Amendment, violates the Administrative Procedure Act (“APA”), and constitutes an unlawful ultra vires action. (Doc. No. 1.) Shortly

after the Petition was filed, this Court issued an order enjoining the Government from moving Diallo out of this District. (See Doc. No. 2.) After the Court ordered the parties to meet and confer on the Petition (Doc. No. 3), the parties proposed—and the Court accepted—an initial briefing schedule on the Petition. On July 24, 2026, Respondents (collectively, “the

1 The Government disputes this fact, but it is immaterial to the Court’s analysis as the Government has made no showing any alleged criminal history is a basis for Diallo’s detention. (See Doc. No. 8-4 at 2–3.); cf. Lopez Cruz v. Jamison, No. 26cv2278, 2026 WL 1257329, at *2 (E.D. Pa. May 7, 2026) (discussing how petitioner’s arrest for multiple violent felonies was the basis for his detention under 8 U.S.C. § 1226(c)). Government”)2 originally opposed this relief, representing to this Court that the Government is lawfully detaining Diallo because as of March 31, 2005, he had a Final Order of Removal, “and is therefore subject to detention under 8 U.S.C. § 1231(a).” (Doc. No. 8 at 2.) The Government went on to argue that “ICE detained Petitioner to effectuate his order of removal” because even

though he has a withholding of removal (Doc. No. 1 at 16), “the Republic of Sierra Leone has accepted [Diallo] for third-country removal,” and he is “undisputedly subject to an administratively final order of removal” (Doc. No. 8 at 2, 4) (emphasis added). Diallo replied on July 28, 2026, reasserting he is improperly detained because he has a withholding of removal to Guinea, and the Government cannot deport him to a third-country without revoking that withholding. (See Doc. No. 9.) The Court then asked the parties “to provide the Court with letter briefs addressing how the Court should consider the March 31, 2005 order of Immigration Judge Annette S. Elstein (Doc. No. 1 at 16) and whether or how such an order is distinguishable from the situation addressed in Matter of I-S- & C-S-, 24 I. & N. Dec. 432 (BIA 2008).” (Doc. No. 10.) Both

parties did so, and each reemphasized their prior positions (see Doc. Nos. 11, 12), but the Government also recognized there was a “factual dispute [] at issue in this case”—namely, whether Judge Elstein ever entered a final order of removal—and they requested twenty-one days to obtain a copy of Judge Elstein’s March 31, 2005 oral decision (Doc. No. 12 at 2). The Court granted the Government’s request. (Doc. No. 14.) Twenty days later, the Government filed a Supplemental Brief conceding Diallo has no Final Order of Removal, so he cannot be detained under 8 U.S.C. § 1231(a), but arguing—for the first time—that Diallo should remain

2 Diallo names five government officials and one government agency as Respondents: (1) JL Jamison, Warden of the FDC; (2) Brian McShane, Acting Philadelphia Field Office Director for Enforcement and Removal Operations, ICE; David Venturella, Acting Director of ICE; (4) Markwayne Mullin, Secretary of DHS; (5) Todd Blanche, U.S. Attorney General; and (6) DHS. (Doc. No. 1 at 1.) detained pursuant to 8 U.S.C. 1226(a). (Doc. No. 14.) Diallo has replied, arguing that the Government’s fluctuating statutory arguments should weigh in favor of granting the Petition. (Doc. No. 15.) As the Petition is fully briefed, it is ripe for resolution. III. LEGAL STANDARD Diallo seeks a writ of habeas corpus pursuant to 28 U.S.C. § 2241. Under that provision,

a federal district court is authorized to grant a writ of habeas corpus to a petitioner who is “in custody under or by color of the authority of the United States . . . in violation of the Constitution or laws or treaties of the United States.” 28 U.S.C. § 2241(c)(1), (3). A petitioner carries the burden of showing his detention violates the Constitution or federal law. Id. § 2241(c)(3); Walker v. Johnston, 312 U.S. 275, 286 (1941). IV. DISCUSSION Diallo is correct that during the pendency of this action, the Government has provided the Court shifting explanations for the basis of Diallo’s detention. First, it was 8 U.S.C. § 1231(a), and now it is 8 U.S.C. § 1226(a). (See Doc. Nos. 8, 14.) So, even though the Government has now conceded that Diallo “is not presently detainable under 8 U.S.C. § 1231(a)” (Doc. No. 14 at

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Alpha Ousmane Diallo v. JL Jamison, in his official capacity as Warden, Federal Detention Center, Philadelphia, et al., (E.D. Pa. 2026).

Alpha Ousmane Diallo v. JL Jamison, in his official capacity as Warden, Federal Detention Center, Philadelphia, et al. (Alpha Ousmane Diallo v. JL Jamison, in his official capacity as Warden, Federal Detention Center, Philadelphia, et al.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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