WASHINGTON, July 21 — The FBI maintains a global network of legal attaché offices—legats, in the jargon—in over 70 countries, roughly 200 of them in total. They are the primary interface between the Bureau and foreign law enforcement and intelligence agencies, handling joint investigations, evidence sharing, and extradition requests. The whole system runs on bilateral Mutual Legal Assistance Treaties (MLATs) and a web of other agreements.
The U.S.-Russia MLAT has been in effect since 2002. But as ever with the technical reality of international law enforcement, a treaty is only as good as the people who can pick up the phone.
The Legat Network
Under the hood, a legal attaché office is a small embassy-within-an-embassy. FBI agents stationed abroad build the personal relationships and local know-how that make cross-border investigations possible. They navigate different legal systems, police cultures, and languages—and they do it under the protection of diplomatic immunity.
When a legat is closed, as the FBI’s Moscow office has been since 2016, that entire channel collapses. The closure followed Russia’s annexation of Crimea in 2014 and the broader deterioration of U.S.-Russia relations.
Since then, the U.S. Embassy in Moscow has retained a Regional Security Office that handles some law enforcement liaison. But that is a consular function, not a dedicated investigative post. The detail that matters: direct communication between the FBI and Russian agencies is now effectively limited.
A Treaty Without a Channel
The Mutual Legal Assistance Treaty signed by both countries in 2002 was designed to allow each government to request and provide evidence for criminal investigations. On paper it remains in force. In practice it has been stalled since the legat was shuttered.
Without a functioning FBI presence in Moscow, requests for evidence or joint investigative work become diplomatic notes circulating through the State Department and the Russian Ministry of Foreign Affairs—slow, formal, and subject to the political weather. Formal visits by an FBI director to Moscow are rare.
The source material notes that such a trip requires advance approval from both the U.S. State Department and the Russian Ministry of Foreign Affairs. Any agreements reached during such a visit would be non-binding and subject to the broader state of diplomatic relations. That is not a recipe for fast-moving criminal investigations.
The FBI also coordinates with Interpol, of which Russia remains a member. But the organisation’s channels are often politicised, with member states using the system for purposes that have little to do with ordinary crime-fighting.
For U.S. investigators, Interpol is a fallback, not a primary tool, for cooperation with Moscow. The wry observation that any informed reader will make: the FBI’s most effective avenue for substantive cooperation with Russian law enforcement now likely depends on side meetings with Russian officials at third-country venues—conferences, Interpol meetings, or diplomatic receptions in neutral capitals. No legat, no regular channel, no treaty in active use.
That is the technical reality as of July 2026, and it is unlikely to change without a broader diplomatic reset.
