Derrick Carl Andrew Chatman, a 25-year-old resident of Broken Arrow, was sentenced on April 28 to two years in prison for illegally possessing firearm conversion devices known as “switches,” according to U.S. Attorney Clint Johnson.
The sentencing comes after law enforcement found that Chatman unlawfully possessed devices used to convert handguns into machine guns. This case highlights ongoing efforts by federal authorities to address violent crime and the illegal modification of firearms in the region.
According to the press release, U.S. District Judge John D. Russell ordered Chatman to serve 24 months in prison followed by one year of supervised release for illegal possession of a machine gun. The investigation began in July 2025 when Tulsa Police contacted the Bureau of Alcohol, Tobacco, Firearms and Explosives after recovering a firearm with an attached conversion device from a juvenile’s bedroom. The juvenile said he purchased both the firearm and switch at a local gun show from an individual who installed it on site.
A search at Chatman’s home uncovered another firearm, ammunition, and a box containing additional switches shipped from China. Authorities also intercepted another package addressed to Chatman containing fifteen more conversion devices. State court records indicate that in July 2024, Chatman was charged with drug-related offenses and possession of a firearm during commission of a felony; he pleaded guilty shortly thereafter and was under state supervision when federally indicted.
Chatman will remain in custody pending transfer to federal prison facilities. The case is being investigated by the ATF, Tulsa Police Department, and U.S. Customs and Border Patrol; Assistant U.S. Attorney Aaron Jolly is prosecuting.
The U.S. Attorney for the Northern District of Oklahoma contributes to community safety through its enforcement efforts according to its official website. It operates as part of the Department of Justice as outlined online and employs more than 65 Assistant United States Attorneys per its website. The office covers eleven counties including Tulsa County as indicated online, enforcing federal laws through impartial litigation and partnerships designed to enhance safety according to its official information.
Broader initiatives such as Project Safe Neighborhoods aim to reduce violent crime by bringing together law enforcement agencies across all levels with other organizations serving communities.
