[Back to AlphaBay seizure](https://takedownindex.org/takedowns/alphabay-seizure)

Operation Bayonet

# Organizations and roles

July 2017, Darknet market
[AlphaBay seizure](https://takedownindex.org/takedowns/alphabay-seizure)

Last reviewed August 21, 2026

The public record puts 5 organizations on this action. Operational lead: FBI and DEA. The table lists the role the cited record assigns each one, in the record's own wording where it gives any.

## Why this page names organizations only

Roles on this page describe the agencies that took part. Individuals named in the public record appear on the takedown entry itself, under People and accountability.

## Organizations and roles

| Emblem | Organization | Role | What the record says |
| --- | --- | --- | --- |
| | [Federal Bureau of Investigation](https://takedownindex.org/organizations/federal-bureau-of-investigation), United States | Operational lead | Led the investigation and the seizure of AlphaBay infrastructure. |
| | [Drug Enforcement Administration](https://takedownindex.org/organizations/drug-enforcement-administration), United States | Co-lead | Co-led the narcotics investigation. |
| | [European Union Agency for Law Enforcement Cooperation](https://takedownindex.org/organizations/european-union-agency-for-law-enforcement-cooperation) | Coordinator | Coordinated international elements of the joint operation. |
| | [United States Attorney's Office for the Eastern District of California](https://takedownindex.org/organizations/united-states-attorney-s-office-for-the-eastern-district-of-california), United States | Charging | Filed the indictment against Cazes. |
| | [Royal Thai Police](https://takedownindex.org/organizations/royal-thai-police), Thailand | Arresting | Physically arrested Alexandre Cazes in Bangkok at US request. |

## Accountability

### Legal authority

US seizure and arrest warrants (Eastern District of California) plus Thai judicial cooperation and Canadian asset action

This page records organizational involvement as the cited sources state it. Where a role carries no description, the record gives none.

Last reviewed August 21, 2026