The document at the center of a federal investigation may look ordinary: a visa application, Form I-9, Social Security card, passport, marriage petition, or answer given during a USCIS interview. What changes everything is the government’s claim that the information was not merely wrong, but knowingly false.

That difference matters. A filing error can threaten an immigration benefit, while alleged fraud can bring federal charges, prison exposure, and separate immigration consequences. Before answering investigators, first find out which agency is asking questions, what document it is examining, and whether the inquiry is administrative or criminal.

If you are under investigation for document fraud, false statements, marriage fraud, identity-related allegations, or another federal immigration offense, speak with a federal immigration defense lawyer before answering questions or submitting additional documents.

Immigration document fraud is not one federal crime

“Immigration document fraud” is a broad label, not a single charge. Prosecutors select statutes based on the document, the alleged falsehood, how it was used, and what they believe the person knew.

More than one statute may appear in the same indictment, but the government must prove every element of every count. An allegation involving a false visa is not legally identical to one involving a false citizenship claim or another person’s identity.

These are statutory maximums, not predictions. The charge, criminal history, Sentencing Guidelines, alleged loss, number of documents, role in the conduct, and case resolution can all affect the sentence in a federal criminal case.

The charges prosecutors use most often

The title printed on a form does not decide the charge. The government’s theory about the document and its use does.

Fraud and misuse of visas, permits, and other documents

18 U.S.C. § 1546 covers several forms of conduct. Section 1546(a) addresses acts such as forging, altering, possessing, obtaining, accepting, or using specified immigration documents while knowing they are forged, altered, falsely made, or unlawfully obtained.

The same subsection also reaches certain impersonation and false-statement conduct in documents required by immigration law. Because § 1546(a) contains several distinct clauses, a defense must identify exactly which clause the indictment invokes rather than treating the statute as one general fraud offense.

Section 1546(b) is narrower. It concerns specified fraudulent documents or false attestations used to satisfy federal employment-verification requirements.

Material false statements under 18 U.S.C. § 1001

Section 1001 can apply to a material false statement made knowingly and willfully in a matter within federal jurisdiction. It can cover a written submission, concealment of a material fact when there is a legal duty to disclose it, or a spoken answer during an agency interview.

No forged document is required. A conversation with an HSI or USCIS investigator can create § 1001 exposure if the government can prove the required elements.

Materiality is more than the government disliking an answer. The statement must have a natural tendency to influence, or be capable of influencing, the federal decision-making body.

False claims to U.S. citizenship

18 U.S.C. § 911 makes it a crime to falsely and willfully represent oneself as a U.S. citizen. The alleged representation may arise in employment, passport, voting, licensing, or immigration settings.

The criminal charge is only one risk. Federal immigration law contains separate inadmissibility and deportability grounds for certain false citizenship claims, and those grounds may be disputed even without a § 911 conviction.

Identification-document fraud under 18 U.S.C. § 1028

Section 1028 covers multiple offenses involving identification documents, authentication features, document-making equipment, and means of identification. The prosecution must prove the specific prohibited act, the required mental state, and a federal-jurisdiction connection listed in the statute.

Its penalties are too varied to reduce honestly to one number. Depending on the subsection and circumstances, the maximum may be one, five, 15, 20, or 30 years.

Aggravated identity theft is not automatic

18 U.S.C. § 1028A can add a mandatory two-year sentence that generally runs consecutively to the sentence for a listed underlying felony. Visa and document offenses under Chapter 75 of Title 18 are among the listed predicates.

A predicate charge involving someone’s identifying information does not automatically establish aggravated identity theft. The government must prove that the accused knowingly transferred, possessed, or used, without lawful authority, a means of identification belonging to another actual person during and in relation to the listed felony.

Two Supreme Court decisions sharpen that boundary:

• Flores-Figueroa v. United States: The government must prove the accused knew the identifying information belonged to another person.

• Dubin v. United States: Merely mentioning or incidentally using someone’s identity while committing another offense is not enough. The identity misuse must be at the core of what made the conduct criminal.

Those rules make the source of the identity, the person’s knowledge, and the exact way the information was used central defense questions.

Marriage fraud under 8 U.S.C. § 1325(c)

Section 1325(c) applies when a person knowingly enters a marriage for the purpose of evading immigration law. A marriage that later failed is not, by itself, proof that it was fraudulent when entered.

Investigators may examine the couple’s intent at the time of marriage through interview answers, living arrangements, finances, messages, photographs, travel, and statements from relatives or friends. Inconsistency can draw attention, but the government still must prove the criminal purpose beyond a reasonable doubt.

If the investigation also concerns transporting, moving, or sheltering a person unlawfully in the United States, see our guide to federal alien harboring and transporting charges.

An immigration inquiry can become a criminal investigation

USCIS decides applications and petitions; it is not the federal prosecutor. Still, information developed during adjudication can be referred to law enforcement, and records from an immigration file may later appear in a criminal investigation.

Several agencies may become involved:

• USCIS fraud personnel: USCIS reviews applications and may examine suspected benefit fraud, public-safety issues, or national-security concerns.

• Homeland Security Investigations: HSI investigates immigration document, identity, marriage, and benefit fraud, sometimes through multi-agency task forces.

• Diplomatic Security Service: DSS investigates U.S. passport and visa fraud.

• Other federal agencies: The FBI, Department of Labor, Social Security Administration Office of Inspector General, or another agency may participate when the allegations reach beyond immigration forms.

There is no guaranteed sequence from interview to indictment. Investigators may use agency files, witness interviews, subpoenas, search warrants, financial records, travel records, employment files, and electronic communications in different orders.

Administrative questions and criminal questions require different judgment

A person may need to answer questions or provide evidence to pursue an immigration benefit. That does not mean every request should be answered immediately, especially if truthful answers could create criminal exposure.

Criminal defense counsel and qualified immigration counsel should coordinate before the next interview or filing. The goal is not to hide information; it is to avoid an uninformed response that damages both matters.

Target, subject, and witness

The Department of Justice formally defines a target as someone prosecutors or the grand jury believe is linked by substantial evidence to a crime and view as a likely defendant. A subject is someone whose conduct falls within the scope of the grand jury investigation.

“Witness” usually describes someone believed to have relevant information, but it is not a promise of safety. A witness can become a subject or target as new facts develop, and agents may not volunteer how they currently view the person.

Do not use an interview as an attempt to discover your status. Counsel can contact the agency or prosecutor, clarify the request where possible, and assess whether an interview serves your interests.

Criminal and immigration consequences are separate

A criminal court decides guilt and imposes a sentence. Immigration agencies and immigration courts apply a different body of law to admission, status, removal, and future benefits.

That means a favorable-looking criminal resolution can still cause serious immigration harm. The exact effect depends on the statute of conviction, admitted facts, sentence, immigration status, date of admission, prior history, and relief potentially available.

When a conviction may be an aggravated felony

Federal immigration law lists several categories of “aggravated felony.” The label does not depend only on whether the criminal statute calls the offense a felony.

Two categories can be especially relevant:

• Fraud or deceit with loss above $10,000: An offense involving fraud or deceit may qualify when the loss to victims exceeds $10,000.

• Certain document-fraud convictions: A § 1546(a) offense may qualify when the term of imprisonment is at least 12 months, subject to a narrow exception for some first offenses involving assistance only to a spouse, child, or parent.

An aggravated-felony finding can trigger removal and sharply restrict relief. Because the analysis may turn on the charging language, plea agreement, restitution, and sentence, immigration review should happen before a plea is entered.

Fraud, moral turpitude, and false citizenship claims

Some fraud convictions may be treated as crimes involving moral turpitude, but the result depends on the statute and record of conviction. Timing after admission, possible sentence, and prior convictions can also matter.

A false claim to U.S. citizenship has its own immigration consequences. The statutory grounds and limited exceptions differ from the rules governing ordinary fraud or willful misrepresentation, so the claim should not be analyzed as just another paperwork error.

Denaturalization is possible, but not automatic in every case

A conviction under § 1546, § 1001, or § 911 does not automatically revoke citizenship simply because it concerns immigration. Civil denaturalization may be pursued when the government alleges that naturalization was illegally procured or obtained through concealment of a material fact or willful misrepresentation.

Automatic revocation applies after a conviction under 18 U.S.C. § 1425 for knowingly procuring naturalization contrary to law, as directed by 8 U.S.C. § 1451(e). The criminal charge and its connection to the original naturalization process therefore matter.

Anyone who is not a U.S. citizen—or whose naturalization is questioned—should have federal criminal defense counsel coordinate with an experienced immigration lawyer before discussing a plea. Keith & Lorfing can address the federal criminal case while immigration counsel analyzes status-specific consequences.

How the government tries to prove knowledge and intent

The statutes do not all use identical language. Some require knowledge, some require willfulness or a particular purpose, and some contain several alternatives with different elements.

Agents often look for evidence that turns an incorrect document into an intentional act:

• Application history: Repeated answers across petitions, visa forms, employment records, and interviews may be compared for inconsistencies.

• Messages and email: Communications with a preparer, employer, spouse, sponsor, or document provider may show what the person was told.

• Payment and financial records: Transfers may be used to support allegations involving purchased documents, paid marriages, or organized schemes.

• Travel and residence records: Entry records, leases, bills, and location evidence may be compared with statements about residence or a relationship.

• Witness accounts: Petitioners, relatives, employers, preparers, and alleged document suppliers may be interviewed.

• Digital and physical document evidence: Metadata, printers, templates, photographs, and document-security features may be examined.

One inconsistency does not prove fraudulent intent. People misunderstand questions, use translators, rely on preparers, forget dates, or sign forms they did not fully review. The defense must place each statement in its full setting rather than accepting the government’s most damaging interpretation.

Defenses depend on the charged statute

There is no universal “paperwork defense.” A useful defense targets the element the prosecution cannot prove. Our federal immigration defense attorneys examine the specific statute, alleged false statement or document, knowledge and intent evidence, immigration record, and potential collateral consequences before determining which defenses the facts support.

• No knowledge of falsity: The person may not have known that a document, number, translation, or answer was false.

• No willful false statement: A misunderstanding, memory error, ambiguous question, or inaccurate translation may undermine the required mental state.

• No materiality under § 1001: The statement may not have been capable of influencing the relevant federal decision.

• No prohibited purpose in a marriage case: Evidence may show a genuine intent to establish a life together when the marriage began, even if the relationship later ended.

• No knowledge that an identity belonged to a real person: This can defeat a § 1028A theory under Flores-Figueroa.

• Identity use was not central to the predicate crime: Under Dubin, incidental use may not satisfy § 1028A.

• Unlawful search or interrogation: The defense may challenge evidence obtained through an invalid warrant, a search beyond its scope, or custodial questioning that violated constitutional protections.

• Unreliable documents or witnesses: Missing context, faulty translations, inconsistent witnesses, and weak document examination can undermine the government’s timeline.

Early representation creates options that may disappear after an unprepared interview. Counsel can preserve records, identify the statutes at issue, review the immigration file, communicate with investigators, and decide whether a voluntary presentation would help or create more risk.

What to do after federal agents make contact

Do not panic, argue, or try to erase the problem. A calm, short response usually protects you better than a long explanation given before you understand the investigation.

• Ask who is contacting you: Record the agent’s name, agency, phone number, and stated purpose.

• Ask whether participation is voluntary: An interview request is different from a subpoena, warrant, or official notice with a deadline.

• Do not lie or guess: A new false statement can become a separate charge.

• Do not consent casually: Do not agree to a home search, device search, or extended interview merely because the request sounds informal.

• Preserve records: Keep applications, drafts, messages, emails, translations, payment records, and instructions from preparers.

• Do not coordinate accounts: Contacting a spouse, employer, or co-applicant to align stories can be portrayed as obstruction or witness tampering.

• Get both forms of legal review: Criminal and immigration lawyers should assess the next filing, interview, subpoena, or plea together.

If agents have a search warrant, do not interfere. Ask for a copy, note what was taken, and contact counsel. If you receive a subpoena or immigration notice, preserve the envelope and record the date of receipt because response deadlines matter.

Why Keith & Lorfing

Federal document cases are built line by line. The defense must be just as careful—matching each count to its elements, each statement to its context, and each alleged identity use to what the law actually prohibits.

Russell Lorfing is a former federal prosecutor in Lubbock, and our team includes multiple former federal and state prosecutors. That background helps us examine how agents gathered the evidence and how a U.S. Attorney’s Office may evaluate it.

If HSI, USCIS, DSS, or another federal agency has contacted you about an immigration document or suspected fraud, contact Keith & Lorfing before giving another statement, attending an investigative interview, or submitting a new filing.

Frequently asked questions

Can I be charged if I did not know the document was false?

Knowledge is central to many document-fraud charges, but the exact mental-state requirement depends on the statute and clause charged. Evidence about the document’s source, instructions from a preparer, translations, prior filings, and what you were told may all matter.

Does every false answer on an immigration form become a federal crime?

No. Prosecutors must prove the elements of a criminal statute, including the required mental state and, where applicable, materiality. A mistake can still affect an immigration application even when it does not support a criminal conviction.

Does using another person’s identification automatically mean aggravated identity theft?

No. Section 1028A requires proof that the accused knew the identification belonged to another actual person and used it without lawful authority during and in relation to a listed felony. Under Dubin, the identity misuse must be central to what made the conduct criminal.

Will a document-fraud conviction automatically cause deportation?

Not every conviction has the same immigration result. The statute, record of conviction, sentence, status, admission history, alleged loss, and available relief all matter, but some document and fraud offenses can create removal grounds or qualify as aggravated felonies.

Can a naturalized citizen lose citizenship?

Yes, in defined circumstances, but not every immigration-related conviction automatically causes denaturalization. A § 1425 conviction triggers revocation under § 1451(e), while civil denaturalization has separate legal grounds and procedures.

Should I attend a USCIS interview if I think I am under investigation?

Do not simply miss a scheduled interview, because that can harm the pending application. Have criminal and immigration counsel review the notice and the possible exposure first, then decide how to respond lawfully.

What if I already spoke with investigators?

Do not call back to improve or change your answers. Write down what you remember, preserve the related records, and speak privately with counsel before the next contact.