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Bureau of Alcohol, Tobacco, Firearms and Explosives
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About St. Paul Field Division

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Welcome to ATF’s St. Paul Field Division. From the pristine Lake Michigan shores of Wisconsin, extending west through Minnesota’s “Land of 10,000 Lakes,” and continuing to the Black Hills of South Dakota and the Badlands of Theodore Roosevelt National Park in North Dakota, the St. Paul Field Division has a large geographic area of responsibility. Our dedicated work force is comprised of special agents, investigators, auditors, technicians and support staff.

ATF’s St. Paul Field Division special agents combat firearms violence by focusing their investigative efforts on armed violent offenders, career criminals, gun traffickers and gangs. We also work in partnership with other local, state and federal law enforcement agencies throughout the field division to accomplish this mission. Some of our more notable investigations have been the Outlaws motorcycle gang, the Tre-Tre Crips and the Detroit Boys street gangs.

Employees of the ATF St. Paul Field Division are also very proactive in investigating violations of federal law pertaining to arson and explosives. Our high success rate of these investigations is a direct correlation of our close working relationship with the state and local fire departments and police bomb squads.

ATF also has the duty of regulating the firearms and explosives industries. Our industry operations investigators work to ensure that all firearms and explosives are stored, handled and sold in a safe manner according to law.

We encourage all residents to get involved and assist us in our goal of reducing crime in our communities. Give us a call and let us know what we can do for you. Our phone number is (651) 726-0200.

James C. Modzelewski


James C. Modzelewski

James C. Modzelewski

Special Agent in Charge
St. Paul Field Division

James C. Modzelewski assumed responsibility as the Special Agent in Charge (SAC) of the St. Paul Field Division of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) on October 5, 2014. He directs ATF operations in Minnesota, North Dakota, South Dakota and Wisconsin.

ATF is a key law enforcement agency within the U.S. Department of Justice that protects our communities from violent criminals, criminal organizations, the illegal use and trafficking of firearms, the illegal use and storage of explosives, acts of arson and bombings, acts of terrorism, and the illegal diversion of alcohol and tobacco products. The men and women of ATF perform the dual responsibilities of enforcing Federal criminal laws and regulating the firearms and explosives industries to protect against crime, violence, and other threats to public safety.

Most recently, SAC Modzelewski served as the Assistant Special Agent in Charge (ASAC) in the Seattle Field Division of ATF, overseeing criminal enforcement offices in Washington, Hawaii and Guam. SAC Modzelewski was also stationed as the Resident Agent in Charge (RAC) of the criminal enforcement offices in Wilmington, NC and Columbia, SC. Additionally, he served as a Project Officer and Program Manager in the Special Operations Division and the State & Local Training Division in ATF Headquarters, Washington, D.C. SAC Modzelewski began his career with ATF in 1991, as a Special Agent in Charlotte, North Carolina.

Prior to joining ATF, SAC Modzelewski served as a South Carolina State Trooper from 1989 to 1991. He holds a bachelor’s degree in Business Administration from The Citadel, the Military College of South Carolina.