Federal prosecutors in northeastern Oklahoma have charged 38 people with child exploitation crimes and separated 21 minor children from defendants as part of a sprawling, months-long crackdown known as Operation Clean Sweep III. Investigators also checked in on 887 registered sex offenders across 10 of the district's 11 counties, finding 34 who were not complying with federal registration rules.
U.S. Attorney Chris Nassar announced the results of the operation, which launched in March 2026 and drew referrals from eight of the Northern District of Oklahoma's 11 counties, according to KOKH. The U.S. Attorney's Office opened 66 cases for investigation that month, with remaining cases still under review as prosecutors decide whether to pursue charges. Among the 38 defendants, 26 were charged with possessing child sexual abuse material, eight with producing it, and nine with coercion and enticement for using phones and apps to target minors, the station reported.
Federal prosecutors said the 21 children identified during the operation represent minors physically separated from defendants — not children depicted in seized digital material, a distinction officials were careful to draw as the investigation closed out. Identifying children who appear in abusive files recovered during the sweep requires separate, ongoing forensic work, according to the Department of Justice. More than 25 federal, state and tribal law enforcement partners took part in the operation, per KOKH's reporting.
A New Attorney With Deep Roots In the Case
Nassar was sworn in to lead the U.S. Attorney's Office for the Northern District of Oklahoma on August 14, just ten days before announcing the Operation Clean Sweep III results, according to the Department of Justice. He is no newcomer to the initiative: Nassar previously served as an Assistant U.S. Attorney who helped lead the very first Operation Clean Sweep back in January 2021, alongside fellow prosecutor Edward Snow, under then-U.S. Attorney Trent Shores. That original operation was launched to counteract a spike in internet-facilitated child exploitation during pandemic lockdowns.
The scale of the crackdown has grown with each phase. Operation Clean Sweep II, launched in April 2024 under former U.S. Attorney Clint Johnson, resulted in 25 indictments and compliance checks on more than 525 registered sex offenders, uncovering over 50 who were non-compliant, per the Department of Justice. Phase III's 38 indictments mark a jump from both that phase and the original 2021 sweep, which charged 33 defendants — growth officials attribute largely to the volume of digital tips flowing in from national reporting systems.
Tribal and Federal Agencies Working the Same Cases
Operation Clean Sweep III was co-led by the Tornado Alley Child Exploitation and Trafficking Task Force, a regional coalition created by Homeland Security Investigations' Dallas office to pool federal, state and tribal law enforcement resources across Oklahoma, the Department of Justice said. The operation has long relied on cooperation with tribal law enforcement, including the Muscogee Creek Nation Lighthorse Police and Cherokee Nation Marshals, who help carry out sex offender compliance checks and prosecute child sex offenses committed in Indian Country, according to MVSKOKE Media. That coordination reflects the complex jurisdictional map of eastern Oklahoma, where federal, state and tribal authority frequently overlap.
The compliance sweeps represent one half of the operation's dual approach. While undercover digital stings target online coercion, enticement and the distribution of abuse material, the physical checks on registered offenders — carried out jointly with tribal officers and U.S. Marshals — monitor whether offenders are meeting registry obligations on the ground, per the Department of Justice.
Fueled By a Surge in National Tip Reports
From January through August 2026, the National Center for Missing and Exploited Children forwarded 8,621 CyberTips to the Oklahoma State Bureau of Investigation's Internet Crimes Against Children unit, according to the Department of Justice. That flow of tips resulted in 2,086 opened investigations, including 586 cases routed directly to Northern District of Oklahoma law enforcement partners. Nationally, NCMEC received 1.4 million reports of online child enticement in 2025 alone — a 158% jump from the year before — along with 21.3 million total CyberTipline reports containing more than 61.8 million abusive files, per MissingKids.org.
Those numbers help explain why local task forces like TACETT have expanded their scope with each phase of Operation Clean Sweep. All of the operation's phases fall under Project Safe Childhood, a nationwide Department of Justice initiative launched in 2006 to coordinate federal, state and local resources against internet-facilitated child exploitation.
Steep Penalties Await Those Convicted
Defendants charged with producing child sexual abuse material under federal law face a mandatory minimum of 15 years in prison, while those charged with child enticement using electronic media face a 10-year mandatory minimum, according to the Department of Justice. Those sentencing floors leave federal judges no discretion to go lower, regardless of individual circumstances.
Investigations and prosecutions will continue on every open matter that has not yet been charged, even as Operation Clean Sweep III itself comes to a close as a formal operation, KOKH reported. Nassar said law enforcement agencies will keep partnering with the National Center for Missing and Exploited Children going forward, with officials vowing to carry the experience and relationships built during the operation into future enforcement efforts across the Northern District of Oklahoma.
The case adds to a string of federal child exploitation prosecutions in the region this year. Hoodline previously reported on the indictment of a Tulsa man on federal sex abuse charges, as well as sentencings tied to earlier CyberTip investigations in Claremore and Tulsa.
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