State prosecutors control the underlying criminal case, but the Justice Department and State Department generally manage the federal, diplomatic and treaty procedures required to seek the defendant’s arrest and lawful return from another sovereign country.
WASHINGTON, D.C., September 23, 2026
An American state may investigate a crime, file charges, obtain an arrest warrant and prosecute a defendant, but it cannot ordinarily command police, courts or ministers in another country to arrest and surrender someone located beyond United States territory; international extradition belongs to the national relationship between governments, requiring state prosecutors to work through federal institutions that can interpret treaties, communicate diplomatically, coordinate foreign legal proceedings and arrange the secure return of an accused person.
State Criminal Authority Has Territorial Limits
A state court’s warrant carries substantial authority within the American legal system, yet that authority does not independently cross an international border because every foreign country controls arrests, detention and judicial proceedings conducted inside its own territory; California cannot enforce its criminal process in El Salvador, Texas cannot direct officers in Costa Rica and New York cannot order police in Mexico to act, unless the foreign government exercises its own authority through recognized international arrangements.
The Constitution Divides Domestic and Foreign Responsibilities
States possess broad responsibility for ordinary criminal law, while the federal government exercises national powers involving treaties, ambassadors, foreign relations, passports and communication with other sovereign governments on behalf of the United States; that division allows a county prosecutor to remain responsible for proving a murder or fraud case without allowing thousands of local agencies to conduct separate and potentially conflicting foreign policies whenever a defendant leaves the country.
International Extradition Is Not Interstate Extradition
When a defendant crosses from one American state into another, constitutional rendition procedures and implementing statutes provide a domestic framework through which governors, courts and law-enforcement agencies can arrange return between members of the same federal union; when the person enters another country, treaty provisions, diplomatic communications and foreign law replace that framework, creating a sovereign-to-sovereign process that differs fundamentally from transferring a prisoner between Florida and Georgia.
A Governor Cannot Replace the Federal Government Abroad
A governor may issue or receive documents used in interstate rendition, but the governor does not independently negotiate an extradition treaty, send a binding diplomatic note or define the obligations of another country toward the United States; foreign governments expect international criminal requests to arrive through national authorities capable of speaking for the entire country, honoring reciprocal commitments and ensuring that state officials comply with any assurances or limitations attached to surrender.
The State Still Owns the Criminal Case
Federal involvement does not erase state jurisdiction, replace the local prosecutor or automatically create federal charges, because the underlying indictment, witnesses, evidence and anticipated trial remain within the state judicial system; the state must decide whether it genuinely intends to prosecute, whether the evidence remains sufficient and whether the seriousness of the case justifies the costs and burdens imposed on federal and foreign partners.
The Justice Department Provides the Legal Gateway
The Criminal Division’s Office of International Affairs advises state prosecutors on extradition procedure, assesses the applicable treaty, initiates authorized provisional-arrest requests and reviews the completed package before diplomatic transmission; the Justice Department’s international extradition policy expressly explains that the office provides assistance to state prosecutors and that formal state-charge requests are reviewed before submission through the Department of State.
Centralized Review Prevents Conflicting American Positions
Without federal coordination, separate states could offer inconsistent legal interpretations, punishment assurances or diplomatic commitments to the same country, weakening American credibility and creating uncertainty about which promise the foreign government should trust; the Office of International Affairs maintains national consistency by assigning lawyers familiar with particular countries, treaties and recurring defenses, while ensuring that state requests conform to obligations previously accepted by the United States.
Local Police Cannot Order an Overseas Arrest
A state detective may develop leads and share properly authorized investigative information, but neither the detective nor the local prosecutor may independently demand that foreign police arrest a person for extradition outside the approved federal process; an unauthorized request could cause diplomatic conflict, lead to an unlawful detention or create financial liability, particularly when local officials lack the documents required to support continued custody under the controlling treaty deadline.
Foreign Sovereignty Is More Than Formal Protocol
The requested country has its own constitution, criminal statutes, courts, police powers, and human-rights duties, which means an American warrant becomes evidence supporting a request rather than an order directly binding the foreign government; respecting that sovereignty protects reciprocal cooperation, because the United States similarly expects foreign governments seeking fugitives in America to use federal extradition procedures rather than directing local officers from an overseas capital.
Treaties Belong to the National Government
Extradition treaties are agreements between the United States and foreign nations, defining qualifying offenses, documentary requirements, arrest procedures, limitation rules, specialty protections and circumstances allowing or requiring refusal; a state prosecutor relies on those national commitments but does not independently modify them, waive federal interests or promise reciprocity, making Justice Department guidance essential before the state contacts foreign officials or finalizes documents.
Every Treaty Requires Individual Analysis
The legal requirements applicable in Canada may differ from those applied in Mexico, Germany or the United Kingdom, while nationality restrictions, evidence standards and appellate procedures can change the practical likelihood of surrender; federal lawyers familiar with those differences help state prosecutors avoid assuming that a package accepted in one country will satisfy another country, an error that could produce release after provisional arrest or years of unsuccessful litigation.
The State Must Supply a Prosecutable Record
Federal agencies cannot create missing evidence for a local case, so the state remains responsible for certified charging documents, the warrant, a factual affidavit, statutory materials, limitation information, and proof connecting the person abroad to the accused; witness statements, forensic reports, photographs and fingerprints may need to be organized differently from ordinary state discovery because the foreign court evaluates extraditability under its law rather than preparing to conduct the eventual American trial.
Federal Review Tests Extraditability Before Arrest
Office of International Affairs lawyers examine the defendant’s location, citizenship, charged conduct, potential punishment and the state’s willingness to cover required expenses before recommending whether provisional arrest or a completed formal request should proceed; this preliminary assessment protects everyone involved by identifying treaty exclusions, limitation problems or inadequate identification before a foreign government restricts the person’s liberty in reliance on an American representation.
Provisional Arrest Creates Immediate Federal Obligations
When authorities believe a located defendant may flee again, the Office of International Affairs can request urgent provisional arrest through channels permitted by the treaty, while the foreign government decides whether its legal threshold has been satisfied; if arrest occurs, the state must complete the formal package within the prescribed period, often ranging from approximately thirty days to three months, or the foreign court may release the person despite the outstanding American warrant.
A State Must Commit Money and Personnel
State prosecutors requesting provisional arrest generally must confirm that they will produce the documents on time and accept expenses associated with translation, certification and transportation, preventing speculative requests unsupported by a genuine prosecution plan; federal coordination does not mean the national government absorbs every local cost, because the state benefits from the return and remains accountable for using limited international resources responsibly.
The State Department Controls Diplomatic Transmission
After the Justice Department approves the legal package, the Department of State prepares or routes the diplomatic communication through the appropriate American embassy to the foreign ministry or other national authority designated to receive extradition requests; this diplomatic note converts a local prosecution into an official request from the United States, allowing the foreign government to rely on a single authenticated national communication rather than correspondence from an unfamiliar county office.
Embassies Provide Essential Local Knowledge
Diplomats and legal personnel understand the requested country’s institutions, official language, political environment and communication practices, helping federal and state prosecutors respond when foreign authorities request clarification or supplemental documentation; embassy involvement also allows sensitive concerns to be addressed through recognized governmental channels, reducing the risk that public statements or unauthorized local contacts will disrupt a pending arrest or court proceeding.
INTERPOL Does Not Eliminate the Federal Role
A Red Notice or diffusion can circulate identifying information and request that foreign authorities locate a wanted person, but it does not transform a state warrant into a universally enforceable international arrest order; federal authorities coordinate American INTERPOL activity because an alert can trigger detention and treaty deadlines in several countries, potentially obligating the state to produce a complete extradition package wherever the person is found.
The Foreign Country Decides Whether to Arrest
Even after the United States sends an authorized request, local police or judges determine whether foreign law permits arrest, what custody conditions apply and whether the defendant may seek release while extradition litigation continues; no governor, district attorney or federal official can guarantee that response, because the requested government retains independent authority to interpret its laws and protect the rights of people within its jurisdiction.
Foreign Courts Decide Whether Surrender Is Lawful
Judges abroad may examine identity, dual criminality, evidentiary sufficiency, treaty coverage, limitation periods, punishment exposure, political motivation and human-rights arguments before determining whether the accused is legally extraditable; the state prosecutor supplies evidence and explanations through federal channels, but foreign government lawyers ordinarily present the request, reinforcing that the American state is not conducting its own proceeding inside another country’s courtroom.
Federal Diplomacy Manages Assurances
A foreign country may require assurances that the state will not seek capital punishment, impose a prohibited sentence or subject the defendant to treatment considered incompatible with the requested country’s legal obligations; because those promises engage the international responsibility of the United States, a state cannot casually offer, revise or disregard them without Justice Department and State Department participation.
Specialty Limits the Charges After Return
The rule of specialty generally restricts prosecution to offenses for which extradition was granted, preventing a state from obtaining surrender on one approved allegation and immediately pursuing unrelated counts outside the foreign decision; if local prosecutors later want to add charges, federal officials may need to request consent from the surrendering country, ensuring that the state respects conditions attached to a national diplomatic commitment.
Appeals Operate Under Foreign Law
An extradition ruling may be followed by appeals, constitutional challenges, administrative review or human-rights applications, and American authorities cannot order another country’s courts to accelerate or eliminate remedies available to the defendant; during that waiting period, the state must preserve evidence and maintain witness communication while federal officials monitor the foreign process and answer requests through appropriate channels.
The Marshals Service Provides International Reach
The United States Marshals Service can coordinate fugitive investigations, develop leads with domestic and foreign partners and arrange secure escorts after surrender, supplying experience and international connections unavailable to most local departments; deputy marshals may escort a defendant wanted solely on state charges, while state officers can sometimes participate in the transport before receiving custody for booking and prosecution in the originating jurisdiction.
A California Murder Case Shows the Partnership
Raymond McLeod was wanted by San Diego police in connection with the 2016 killing of Krystal Mitchell, but investigators believed he had moved through several countries and was ultimately living in El Salvador; Salvadoran authorities arrested McLeod during a Marshals-led international effort, and NBC San Diego reported his return and initial California court appearance in September 2022, when he pleaded not guilty to the state murder charge.
The case demonstrates the division of labor clearly, because San Diego authorities controlled the homicide prosecution while federal and foreign partners provided the international investigative, diplomatic and operational capabilities required to place the defendant before a California judge; McLeod’s plea also underscored that international capture does not establish guilt, since extradition or another lawful return restores jurisdiction while the state must still prove its allegations through ordinary criminal proceedings.
Databases Work Only Through Cooperation
National warrant systems, border alerts and international notices can help identify a fugitive, but those tools depend on accurate names, fingerprints, photographs and case information supplied by the state and transmitted by authorized agencies; readers examining how wanted people are identified across jurisdictions can consult Amicus International’s discussion of fugitives captured under unusual circumstances, while recognizing that identification remains separate from lawful surrender.
Extradition Advice Must Reflect National Procedures
State and defense lawyers dealing with an international case must understand that domestic warrant practice represents only the beginning, because foreign arrest and extradition require an additional layer of treaty and diplomatic analysis; the Amicus International overview of INTERPOL notices and extradition provides broader context about international mechanisms, although the applicable treaty, foreign law and official governmental instructions control every specific request.
Immigration Removal Is Also a Federal Matter
When extradition is unavailable, a foreign government may decide to deport or expel a defendant who lacks lawful status, but a state cannot independently command that immigration outcome or choose the destination; federal officials coordinate any request for lawful removal because immigration action still implicates foreign sovereignty, travel documentation, diplomatic communication and possible legal challenges in the country where the person is located.
Passport Action Requires National Authority
The Department of State may have authority to revoke an American passport associated with an outstanding state or federal warrant, potentially affecting the person’s ability to remain or travel lawfully abroad; a state cannot cancel a United States passport itself, and revocation does not guarantee return because the foreign country retains control over immigration enforcement and any documentation used for departure.
Foreign Prosecution Requires Government-to-Government Work
If a country refuses to extradite its citizens, officials may explore whether that government can prosecute the person domestically using evidence from the state case, although this alternative is costly, complex and unavailable in many jurisdictions; such a referral requires federal and diplomatic coordination because state prosecutors cannot file their charges directly in a foreign criminal court or compel another nation to exercise domestic jurisdiction.
Centralization Protects Defendants and Victims
Requiring federal review helps ensure that identity is verified, evidence meets the treaty standard and punishment promises are enforceable before a person is detained and transported across borders; the same structure protects victims by reducing avoidable defects that could cause release, delay or permanent refusal after years of waiting and significant public expense.
Federal Involvement Creates Accountability
Documented review establishes which office approved the request, what representations were made and which surrender conditions must be honored, allowing courts and foreign partners to evaluate government conduct transparently; that record becomes particularly important when the defendant challenges specialty, identity, delay or the legality of return after arriving in the state where prosecution will occur.
States Cannot Promise a Universal Timeline
Federal review may take weeks, document preparation may require months and foreign litigation may continue for years, with the requested country controlling hearings, appeals and executive decisions; a strong state case can therefore remain unresolved abroad even when every American agency supports return, because cooperation does not eliminate the independent role of another sovereign legal system.
Return Restores the State Court’s Authority
Once federal escorts or approved state officers deliver the defendant, local authorities complete booking and the state court addresses counsel, release, discovery, motions, plea negotiations and trial scheduling; international cooperation ends with physical surrender, while ordinary state criminal procedure resumes and the presumption of innocence remains intact unless the defendant pleads guilty or the prosecution proves guilt at trial.
The Bottom Line
States cannot extradite international fugitives alone because their warrants do not directly bind foreign governments, their officials do not control national diplomacy and their prosecutors cannot independently exercise police powers abroad; the state supplies the charge, evidence and prosecution commitment; the Justice Department manages treaty legality; the State Department transmits the national request; the foreign government decides surrender; and federal officers frequently coordinate the return.
That multilayered structure may appear slow, but it allows state criminal cases to cross international borders without sacrificing foreign sovereignty, national consistency, defendants’ rights or the diplomatic relationships needed for durable future cooperation.
