Recent rulings from the U.S. Supreme Court and various federal courts have modified the operational parameters for immigration enforcement, specifically concerning the reentry of permanent residents, the legality of courthouse arrests, and the scope of expedited removal.

美國最高法院與各聯邦法院最近的裁決，修改了移民執法的運作參數，特別是關於永久居民重新入境、法院逮捕的合法性，以及快速驅逐出境的範圍。

The U.S. Supreme Court, in Blanche v. Lau, has lowered the evidentiary threshold required for border officials to challenge the reentry of lawful permanent residents. The Court determined that a 'reason to believe' a disqualifying offense—specifically a crime involving moral turpitude (CIMT)—occurred is sufficient to classify a returning resident as an applicant for admission. This shift in procedural posture transfers the burden of proof to the individual to demonstrate admissibility. While the majority emphasized the necessity of rapid screening at ports of entry, the dissent argued that this grants the executive branch excessive discretion, potentially undermining the presumptive right of reentry.

美國最高法院在 Blanche v. Lau 案中，降低了邊境官員質詢合法永久居民重新入境所需的證據門檻。法院判定，只要有「理由相信」發生過取消資格的罪行——特別是涉及道德污點的罪行 (CIMT)——就足以將回國的居民定義為入境申請人。這一程序上的轉變，將證明可入境（admissibility）的舉證責任轉交給個人。雖然多數法官強調在入境口岸進行快速篩查是必要的，但反對意見認為這賦予了行政部門過多的酌量權，可能會損害推定重新入境的權利。

Concurrently, the administration has expanded the application of expedited removal, a process permitting deportation without judicial oversight. The U.S. Court of Appeals for the D.C. Circuit vacated a lower court's stay, permitting the nationwide application of this mechanism to undocumented migrants unable to prove continuous residence for two years. The appellate majority concluded that the existing notice and response protocols satisfy due process requirements, despite assertions from plaintiffs regarding the high probability of administrative error.

與此同時，行政部門擴大了「快速驅逐出境」的應用，這一程序允許在沒有司法監督的情況下進行驅逐。美國哥倫比亞特區巡迴上訴法院撤銷了下級法院的中止令，允許將此機制全國性地應用於無法證明連續居住兩年的無證移民。上訴法院的多數意見認為，現有的通知與回應方案已滿足正當程序要求，儘管原告聲稱行政錯誤的可能性很高。

Conversely, U.S. District Judge P. Casey Pitts has vacated policies pertaining to courthouse arrests and detention durations. The court found that the Immigration and Customs Enforcement (ICE) and the Executive Office for Immigration Review (EOIR) failed to provide a reasoned explanation for rescinding prior restrictions on arrests at immigration courthouses, thereby violating the Administrative Procedure Act. Additionally, the court invalidated a waiver extending short-term detention beyond 12 hours, citing a failure to consider alternatives to punitive conditions of confinement. These rulings contrast with the Department of Homeland Security's position, which characterized such judicial interventions as an impediment to lawful enforcement.

相反地，美國地方法院法官 P. Casey Pitts 撤銷了關於法院逮捕與拘留時長的政策。法院發現，移民及海關執法局 (ICE) 與移民審理執行辦公室 (EOIR) 在撤銷先前對移民法院逮捕的限制時，未能提供合理的解釋，因此違反了《行政程序法》。此外，法院判定延長短期拘留超過 12 小時的豁免失效，理由是未能考慮替代懲罰性拘禁條件的方案。這些裁決與國土安全部的立場相反，後者將此類司法干預視為合法執法的障礙。

Finally, the Department of Justice has intensified denaturalization efforts, targeting naturalized citizens suspected of immigration-related fraud or concealed criminal histories. This represents a significant quantitative increase in cases compared to historical averages, with the administration asserting a zero-tolerance policy toward the abuse of the naturalization process.

最後，司法部加強了撤銷國籍的行動，目標是涉嫌移民相關欺詐或隱瞞犯罪紀錄的入籍公民。與歷史平均值相比，此類案件數量顯著增加，行政部門聲稱對濫用入籍程序採取零容忍政策。

The current legal landscape is characterized by a tension between the expansion of executive enforcement powers at the border and the judicial enforcement of administrative procedural requirements within the interior.

目前的法律格局呈現出邊境行政執法權力的擴張，與內地行政程序司法強制執行之間的緊張關係。