The latest federal budget signed by President Trump on July 4, 2025 significantly increases funding for the Department of Homeland Security and provides for a single lump sum of $29.9 billion toward Immigration and Customs Enforcement for enforcement and removal operations, including the hiring of an additional 10,000 ICE officers in five years. The bill grants ICE significant flexibility and discretion in how to spend this new funding. Businesses should prepare for increased exposure to immigration enforcement and an escalation of interior enforcement operations, including expansive use of administrative subpoenas and Blackie’s warrants.
Administrative subpoenas issued under 8 U.S.C. § 1225(d) allow ICE to compel production of employment records without judicial oversight. Failure to respond can result in civil penalties or heightened scrutiny. A more aggressive enforcement approach may also see ICE rely on Blackie’s warrants, a non-particularized general administrative warrant that allows ICE to enter commercial premises to search for suspected undocumented immigrants.
Administrative subpoenas and Blackie’s warrants differ substantially in origin, authority, and constitutional implications. While both are instruments used in immigration-related actions, administrative subpoenas are issued by immigration officers and lack judicial oversight. In contrast, Blackie’s warrants are issued by federal judges. These differences are not merely procedural – they bear directly on the legality of entry into private spaces, the involvement of local law enforcement, and the scope of Fourth Amendment protections. The distinction shapes how courts assess the validity of arrests and searches in administrative contexts, and understanding the differences is critical in evaluating enforcement practices. Businesses – especially those in industries employing large numbers of immigrants – must be prepared to respond appropriately.
Administrative Subpoena
An administrative subpoena issued by ICE is a legal tool that allows the agency to compel individuals, employers, or institutions to provide documents or testimony relevant to immigration enforcement investigations. Unlike judicial subpoenas, administrative subpoenas do not require prior court approval, making them faster and easier to deploy. ICE derives its authority to issue these subpoenas under the Immigration and Nationality Act, specifically 8 U.S.C. § 1225(d) and 8 C.F.R. § 287.4. Prior court approval is also not required, making them faster and easier for ICE agents to deploy.
Although administrative subpoenas lack the initial backing of a judge, they are legally binding. If the recipient fails to comply, ICE may seek enforcement through the federal court system. This typically involves filing a petition with a U.S. District Court to compel compliance. If the court upholds the validity and scope of the subpoena, the recipient may be required to comply under penalty of contempt.
Administrative subpoenas are not unlimited. The courts can reject them if they are overly broad, irrelevant, or issued without proper procedural adherence. Legal challenges often focus on the Fourth Amendment’s protection against unreasonable searches and seizures, especially when subpoenas request extensive personal or confidential business data. Recipients of administrative subpoenas can also affirmatively seek to quash the subpoena by filing an application to enjoin the agency from seeking to enforce the subpoena.
A primary concern regarding ICE administrative subpoenas is the potential for overreach. Because they do not require judicial oversight, they can be used in ways that lack transparency or due process. For example, ICE has used administrative subpoenas to seek employment records, location data, or information from schools and hospitals, which can raise privacy and civil liberty concerns. Additionally, administrative subpoenas can create tension between local jurisdictions and federal immigration enforcement. Compliance with ICE subpoenas, for example, may conflict with local policies aimed at protecting undocumented residents. State and local privacy laws may also prohibit disclosure of the very information the ICE subpoena seeks.
Businesses may find themselves caught between ICE demands and the rights of their employees and customers. Disclosing information in response to an administrative subpoena without understanding legal obligations and protections can expose organizations to liability or reputational harm, not to mention state and local penalties.
Blackie’s Warrants
Blackie’s Warrants take their name from the landmark case United States v. Blackie’s House of Beef, 659 F.2d 1211 (D.C. Cir. 1981), in which immigration agents executed an administrative search warrant at a business suspected of employing undocumented workers. Although the Fourth Amendment guarantees that “no Warrants shall issue, but upon probable cause,” Blackie’s House inferred from the general provisions of the INA the government’s authority to search a commercial establishment with less than probable cause, given the government’s expansive immigration powers.
Unlike ICE administrative warrants, Blackie’s warrants are judicially authorized search and arrest warrants which do not require the government to specifically identify the individuals sought, but only state that a plausible basis exists to believe that removable noncitizens are present at the location to be searched.
Blackie’s Warrants may be used by ICE to gain lawful entry to private business premises, seize records, and conduct arrests. Critically, Blackie’s Warrants are non-particularized, which means the government does not need to name or even describe the immigrants sought. Businesses presented with a Blackie’s Warrant must comply or risk being held in criminal contempt by the issuing judge.
A recent decision upholding a challenge to a Blackie’s Warrant, however, suggests that federal district courts may not be so quick to allow the government to indiscriminately search private premises without complying with the Fourth Amendment. Earlier this year, the government sought a Blackie’s Warrant to enter a Texas private business and “search any locked rooms on the premises in order to locate aliens, without legal authority, in the United States.” In support of its request, the government identified specific individuals it had reason to believe were using fraudulent documents, but also sought authority to “search anywhere in the target business, including ‘locked rooms’ to locate not just those specific employees, but anyone its agents believe may be an unauthorized alien.” Opinion and Order, In re Sealed Search Warrant Application, No. 3:25-mc-05067 (S.D. Tex. May 27, 2025). The Southern District of Texas Magistrate Judge presented with the request deemed it to be insufficiently tailored and inherently criminal, given the potential penalties faced by the business owners, and thus rejected the government’s request for an “unrestrained administrative inspection warrant” as inconsistent with the Fourth Amendment.
Best Practices
Disclaimer: Writers’ positions do not necessarily reflect those of the Beverly Hills Bar Association. The information contained on this page is not legal advice and may not be relevant in various territories and/or jurisdictions. As the laws change often, the information on this page may not be relevant at some point in time. No attorney-client relationship is formed by use of this post. The information on this page is for general purposes only.
