Two Legal Frameworks, Two Answers

What U.S. Law Says

Ker-Frisbie Doctrine

Courts do not dismiss cases based on how the defendant was brought before them. Forcible abduction does not deprive courts of jurisdiction.

Alvarez-Machain (1992)

The Supreme Court held that abduction from a foreign country does not bar prosecution if the extradition treaty does not explicitly prohibit it.

18 U.S.C. 3238

Provides venue for crimes committed abroad - the defendant may be tried in the district where they are first brought or arrested.

Bottom Line: U.S. courts will almost certainly proceed with the prosecution regardless of capture method.

What International Law Says

UN Charter Article 2(4)

Prohibits the threat or use of force against the territorial integrity of any state. Military operations in foreign territory without consent violate this principle.

Sovereignty Principles

States cannot conduct law enforcement operations in other states' territory without consent. This is a fundamental principle of international order.

ICJ Nicaragua Case

The non-intervention principle prohibits states from interfering in other states' internal affairs through coercion or military action.

Bottom Line: International law objections exist but historically have not stopped U.S. prosecutions.

Evolution of the Ker-Frisbie Doctrine

1886
Ker v. Illinois
Abduction from Peru
1952
Frisbie v. Collins
Reaffirms Ker
1992
Alvarez-Machain
Abduction from Mexico
2026
Maduro Capture
Current Case

Ker v. Illinois, 119 U.S. 436 (1886)

Frederick Ker was forcibly abducted from Peru and brought to Illinois for trial. The Supreme Court held that the manner in which the defendant was brought before the court did not affect the court's jurisdiction. This established the foundational principle that courts will not inquire into how a defendant came before them.

Frisbie v. Collins, 342 U.S. 519 (1952)

Collins was kidnapped from Illinois and taken to Michigan for trial. The Court reaffirmed the Ker doctrine, holding that the power of a court to try a person is not impaired by the manner in which he is brought within the court's jurisdiction. This gave the doctrine its modern name: Ker-Frisbie.

United States v. Alvarez-Machain, 504 U.S. 655 (1992)

A Mexican doctor was abducted by DEA-hired operatives for his alleged role in the torture-murder of a DEA agent. Mexico protested, but the Supreme Court held (6-3) that the U.S.-Mexico extradition treaty's silence on abduction meant it did not prohibit abduction, and thus jurisdiction was proper. This is the key precedent for the Maduro case.

Maduro Capture (January 2026)

Special forces operation resulted in the capture of Nicolas Maduro. Under the Ker-Frisbie doctrine and Alvarez-Machain precedent, U.S. courts are expected to exercise jurisdiction regardless of the capture method. The focus will shift to the merits of the charges, not the manner of apprehension.

Legal Arguments: Both Sides

Key Legal Doctrines Explained

📖 Ker-Frisbie Doctrine Explained

The Ker-Frisbie doctrine is a principle of U.S. criminal procedure holding that courts may exercise personal jurisdiction over a defendant regardless of how the defendant was brought before the court.

Key Elements:

  • Originated in Ker v. Illinois (1886) - defendant abducted from Peru
  • Reaffirmed in Frisbie v. Collins (1952) - kidnapping from one state to another
  • Courts focus on whether they have jurisdiction, not how defendant arrived
  • Even forcible abduction does not divest the court of jurisdiction
  • The defendant may still face trial and conviction

Policy Rationale: The doctrine reflects a practical judgment that courts should not serve as refuges for those who commit crimes simply because of irregularities in their apprehension. The focus is on guilt or innocence, not the means of capture.

Alvarez-Machain: The Key Precedent

United States v. Alvarez-Machain (1992) is the most directly applicable Supreme Court precedent for the Maduro capture.

The Case:

  • Dr. Humberto Alvarez-Machain was a Mexican citizen
  • Accused of participating in the torture-murder of DEA Agent Enrique Camarena
  • Abducted from Mexico by DEA-hired operatives in 1990
  • Mexico formally protested and demanded return

The Holding (6-3 Decision):

  • The U.S.-Mexico extradition treaty did not prohibit abduction
  • A treaty's silence on abduction means abduction does not violate the treaty
  • The Ker-Frisbie doctrine applies to international abductions
  • Jurisdiction was proper despite Mexico's objections

Relevance to Maduro: This precedent strongly suggests U.S. courts will exercise jurisdiction over Maduro regardless of how he was captured, unless a specific treaty provision prohibits such capture.

🚫 The Toscanino Exception

United States v. Toscanino (2d Cir. 1974) created a narrow exception to the Ker-Frisbie doctrine for cases involving extreme government misconduct.

The Facts:

  • Toscanino alleged he was kidnapped in Uruguay
  • Claimed he was tortured for 17 days with electric shocks, starvation, and beatings
  • Argued this treatment "shocked the conscience" and required dismissal

The Exception:

  • Courts may dismiss if government conduct is "so outrageous" it shocks the conscience
  • Must involve torture, brutality, or conduct violating fundamental rights
  • Mere illegal arrest or abduction is NOT sufficient
  • Exception is extremely narrow and rarely applied successfully

Will It Apply to Maduro?: Almost certainly not. The exception requires torture or extreme abuse during capture. A clean capture operation, even if involving force, would not trigger the Toscanino exception.

🛠 What Remedies Exist?

If the capture violated international law, what remedies are available? The answer may surprise those expecting dismissal.

Remedies NOT Available:

  • Dismissal: U.S. courts will not dismiss based on capture method (Ker-Frisbie)
  • Exclusion of Evidence: No automatic exclusionary rule for manner of capture
  • Return to Foreign Country: Courts lack authority to order this

Remedies That ARE Available:

  • Diplomatic Protest: Venezuela can formally protest to the U.S.
  • UN Complaint: Venezuela can raise the issue at the UN Security Council
  • ICJ Proceeding: Venezuela could potentially file a case at the International Court of Justice
  • Civil Suit (Unlikely): Theoretical civil claims under FTCA or Bivens, but sovereign immunity and standing issues make success improbable

The Reality: International law violations in capture typically result in diplomatic friction, not judicial remedies. The prosecution will proceed.

Key Case Citations

Ker v. Illinois, 119 U.S. 436 (1886) Read Full Text
Frisbie v. Collins, 342 U.S. 519 (1952) Read Full Text
United States v. Alvarez-Machain, 504 U.S. 655 (1992) Read Full Text
United States v. Toscanino, 500 F.2d 267 (2d Cir. 1974) Read Full Text
Legal Disclaimer: This content provides general legal information for educational purposes only. It does not constitute legal advice and does not create an attorney-client relationship. The analysis reflects the authors' interpretation of legal precedent as of January 2026.