Mexican National Sentenced to 8 Months in Prison For Assaulting a Federal Officer

SOUTH BEND - Santos Duron Cisneros, 36 years old, of Mexico, was sentenced by United States District Court Judge Cristal C. Brisco after pleading guilty to assault of a federal officer, announced United States Attorney Adam L. Mildred.

Duron Cisneros was sentenced to 8 months in prison.

"An violent illegal alien who assaulted a federal officer was sent to prison for his inexcusable acts. Duron Cisneros violated our nation's borders, laws, and sovereignty when he entered the United States illegally and doubled down when he assaulted an ICE ERO officer. In February 2026, a federal officer with Immigration Customs Enforcement and Removal Operations (ICE ERO) was transporting Duron Cisneros and two other individuals in a vehicle. During the transport, Duron Cisneros became combative, verbally abusive, and physically assaulted another person in the car. Duron Cisneros then resisted the federal officer's attempts to intervene. He kicked at the officer and made contact with the officer's hands as the officer deflected the kick. Duron Cisneros also tried to headbutt the officer. Thanks to the efforts of the Homeland Security Investigations and Immigration Customs Enforcement, and Assistant United States Attorneys Lydia T. Lucius and Teresa L. Ashcraft, the Defendant has been held accountable," said U.S. Attorney Adam L. Mildred.

This case is part of the nationwide National Security Presidential Memorandum 7 initiative, which is a White House directed, interagency effort to integrate federal, state, and local partners in protecting First Amendment rights while targeting individuals and organizations engaged in political violence and is led by the investigative and prosecutorial Joint Task Force Vanguard.