This bill, titled the "Stop Excessive Force in Immigration Act of 2026," establishes comprehensive standards for federal immigration enforcement personnel. It mandates that non-deadly force be used only when no effective, safe, and feasible alternative exists, after reasonable de-escalation efforts, and in proportion to the seriousness of resistance, while minimizing third-party injury. Deadly force must conform to Department of Justice policy, with all force judged from a reasonable officer's perspective in rapidly evolving situations. Officers are not required to retreat but have an affirmative duty to intervene to prevent excessive force and to provide medical aid.

The legislation restricts federal immigration enforcement personnel from wearing masks or face coverings without supervisory approval for specific security or health reasons. Uniforms must clearly display agency identification and are prohibited from using the term "Police" to prevent misidentification. Furthermore, certain equipment like flashbangs, rubber bullets, and tear gas are restricted, permitted only for trained personnel in specific high-threat operations with approved tactical plans.

To enhance accountability, the Secretary of Homeland Security must implement directives for body worn cameras and dashboard cameras, requiring them to be on by default with specific training and protocols. Footage retention varies, with longer periods mandated for use-of-force incidents or registered complaints, and specific individuals, including subjects of the footage and Members of Congress, gain inspection rights. Federal authorities, including the Offices for Civil Rights and Civil Liberties and Inspectors General, are tasked with investigating and disciplining personnel for violations, while state and local authorities should be allowed to investigate excessive force resulting in death or serious injury.

Annual training is mandated for personnel, covering de-escalation techniques, constitutional protections (First and Fourth Amendments), anti-racial profiling, and the duty to intervene and render medical aid. The bill requires semiannual reports to Congress from the Department of Homeland Security on use-of-force incidents, assaults, and identification practices, and from the Department of Justice on impersonation incidents. Finally, it establishes databases for tracking personnel training and certification for restricted equipment, and for recording all use-of-force incidents, significant operational anomalies, and civil rights complaints, with both unredacted and public access.