Which Countries Have U.S. Extradition Treaties?

As explained in our article titled “How U.S. Extradition Works,” international extradition involving the United States is generally based on a treaty. One of the first questions in any potential extradition matter is therefore whether an applicable treaty or convention is in force between the United States and the other country involved.

The existence of a treaty is important, but it is only the beginning of the legal analysis. The terms, territorial application, procedural requirements, and exceptions contained in the particular treaty must also be carefully examined.

How Extensive Is the U.S. Extradition Treaty Network?

The United States maintains extradition relationships with more than 100 countries. Some of these relationships are governed by treaties concluded many decades ago, while others operate under more modern agreements or supplemental instruments.

Older extradition treaties often identify a specific list of extraditable offenses. If an offense does not fall within one of the listed categories, extradition may not be available under that particular treaty.

Many modern treaties instead apply the principle of dual criminality. Under this approach, extradition may generally be available when the underlying conduct constitutes a criminal offense in both countries and satisfies the minimum punishment requirement established by the treaty.

Dual criminality ordinarily focuses on the conduct alleged, rather than whether both countries use precisely the same name or statutory classification for the offense. The operation of this principle is discussed further in our article titled “Understanding Extradition Treaties.”

Examples of Countries with U.S. Extradition Treaties

The United States has extradition treaties or applicable extradition relationships with many countries throughout Europe, North America, South America, Asia, Africa, the Caribbean, and the Pacific.

Examples include:

• Australia;
• Brazil;
• Canada;
• Colombia;
• France;
• Germany;
• India;
• Italy;
• Japan;
• Mexico;
• South Africa;
• South Korea;
• Spain;
• Türkiye; and
• The United Kingdom.

This is not a complete list. The existence and scope of an extradition relationship must be confirmed through the current treaty record and, where applicable, any protocols, multilateral agreements, territorial extensions, or succession arrangements.

A treaty may also apply differently to overseas territories or other jurisdictions associated with a sovereign state. It should therefore not be assumed that a treaty applicable to one country automatically extends to all territories connected with that country.

Notable Countries Without a U.S. Extradition Treaty

The United States does not have a bilateral extradition treaty with every country. Frequently cited examples of countries without a bilateral U.S. extradition treaty include:

• China;
• Iran;
• North Korea; and
• Russia.

This list is not exhaustive, and the absence of a bilateral treaty should not be interpreted as a guarantee that a person cannot be detained, removed, transferred, prosecuted, or otherwise affected by international law enforcement cooperation.

Treaty status should always be verified as of the date of the legal assessment. Diplomatic relations, treaty succession questions, territorial changes, suspensions, terminations, and new agreements may affect whether a particular extradition mechanism remains available.

What Happens When No Extradition Treaty Exists?

When no applicable treaty or convention exists, formal extradition through the ordinary U.S. statutory process is generally unavailable. However, this does not necessarily mean that the individual is beyond the reach of all legal or immigration processes.

Depending on the circumstances and the laws of the countries involved, authorities may consider other mechanisms, including:

• Deportation or removal under immigration law;
• Expulsion or exclusion;
• Criminal prosecution in the country where the individual is located;
• Transfer under another international legal arrangement;
• Revocation or cancellation of immigration or travel documentation; or
• Voluntary return or waiver of extradition proceedings.

These procedures are legally distinct from extradition and may provide different rights and protections. Deportation, for example, is based principally on a person’s immigration status and the domestic law of the country carrying out the removal. It is not ordinarily a substitute for a formal extradition proceeding.

The distinction is examined further in our article titled “Extradition vs. Deportation.”

Federal law also contains a narrow exception that may permit the United States, as a matter of international comity, to surrender certain individuals without an extradition treaty when specified violent offenses against U.S. nationals have allegedly been committed abroad. This exception does not apply to U.S. citizens, U.S. nationals, or lawful permanent residents and is subject to specific statutory certifications and procedural protections.

A Treaty Does Not Guarantee Extradition

The existence of an extradition treaty does not mean that every request will be approved. The requesting country must comply with the treaty’s substantive and procedural requirements and provide the documentation and evidence required by the requested country’s law.

A request may be denied or delayed because:

• The alleged conduct is not extraditable under the treaty;
• Dual criminality is not satisfied;
• The required evidentiary standard has not been met;
• The documents are incomplete or improperly authenticated;
• The person’s identity has not been sufficiently established;
• A treaty exception or ground for refusal applies;
• The request conflicts with applicable constitutional or human-rights protections; or
• The executive authority declines surrender after judicial proceedings have concluded.

Extradition may also be affected by diplomatic relations, foreign-policy considerations, law enforcement priorities, and the requesting country’s compliance with assurances or prior treaty obligations.

Common Treaty Exceptions and Grounds for Refusal

Extradition treaties do not all contain identical exceptions. The available grounds for refusal must be determined from the specific language of the applicable treaty and the relevant domestic law.

Depending on the treaty, potentially relevant issues may include:

• The political-offense exception;
• Restrictions on extraditing a country’s own nationals;
• Double-jeopardy or prior-prosecution provisions;
• Statute-of-limitations requirements;
• Military-offense exceptions;
• Concerns relating to capital punishment;
• The rule of specialty;
• Discriminatory or improperly motivated prosecution;
• Humanitarian considerations; and
• Risks of torture or other serious human-rights violations.

Some grounds require denial of the request, while others give the requested country discretion to refuse extradition or require assurances before surrendering the individual.

For example, when an offense may be punishable by death in the requesting country but not in the requested country, extradition may be conditioned on an assurance that the death penalty will not be imposed or carried out. The precise result depends on the applicable treaty and the law of the requested country.

These issues are discussed further in our article titled “Common Reasons Extradition Requests Are Denied.”

Nationality May Affect Extradition

Some extradition treaties permit or require a country to refuse the extradition of its own nationals. Other treaties do not recognize nationality as a basis for refusal.

When extradition is denied because of nationality, the treaty may permit or require the requested country to consider prosecuting the individual domestically. The practical outcome therefore depends on the treaty language, the requested country’s domestic law, and the available evidence.

Citizenship should never be assumed to provide complete protection against extradition without examining the applicable legal framework.

Treaty Status Must Be Verified Carefully

Determining whether an extradition treaty exists is not always as simple as checking whether two countries once signed an agreement. A proper assessment should determine:

• Whether the treaty entered into force;
• Whether it remains in force;
• Whether it applies to the relevant territory;
• Whether it has been amended or supplemented;
• Whether a later state succeeded to an earlier treaty;
• Whether a multilateral convention provides an additional legal basis;
• Whether diplomatic relations have affected implementation; and
• Whether the alleged offense falls within the treaty’s substantive scope.

A country’s appearance on a general treaty list does not establish that a specific offense, person, or factual situation is covered.

Determining How a Treaty Applies to Your Case

General statistics regarding the number of U.S. extradition partners are less important than the language of the particular treaty that may apply to an individual case.

A meaningful legal assessment generally requires review of:

• The country where the individual is located;
• The country seeking the individual;
• The alleged offense and underlying conduct;
• The date and location of the alleged conduct;
• The individual’s citizenship and immigration status;
• The procedural status of the foreign criminal case;
• The applicable evidentiary standard;
• Potential treaty exceptions; and
• Any relevant asylum, humanitarian, or human-rights concerns.

Because extradition matters involve the interaction of treaty law, domestic statutes, criminal procedure, immigration law, and executive authority, the current treaty and the individual facts should be reviewed carefully before any conclusions are reached.

Legal Disclaimer

This article is provided for general informational purposes only and does not constitute legal advice. Treaty status and extradition procedures may change, and the outcome of a particular matter depends on the applicable treaty, jurisdiction, allegations, evidence, and individual circumstances. Anyone facing an extradition request, provisional arrest, INTERPOL Red Notice, or related proceeding should consult a qualified attorney before taking action.

For an individualized assessment and legal assistance with extradition or other legal matters, you may contact Merit Law LLP by telephone at +1 (973) 317-6056, by email at info@meritllp.com, or through the contact form on our website.