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June 2, 2025

New Law Helps Identify and Prevent the Sale of Stolen Firearms

DENVER, CO - Governor Jared Polis today signed a bill into law to help identify individuals who are trying to sell a firearm that has been reported lost or stolen or involved in a criminal investigation.


“This law allows federally licensed firearm dealers to request verification that they are not buying lost or stolen weapons,” said Rep. Cecelia Espenoza, D-Denver. “We’re establishing a procedure and expediting serial number checks so firearm dealers have better tools to help keep our communities safe by identifying guns that have been stolen or involved in an unsolved crime.”


“SB25-205 comes from concerns raised by firearm dealers in my district, and is a win for both public safety and responsible small businesses,” said Sen. Hinrichsen, D-Pueblo. “It ensures that when someone wants to trade in or sell a used firearm, dealers have a clear process and safeguards while they check if a gun is lost or stolen. By guaranteeing timely law enforcement checks, we keep firearm transactions aboveboard and help people buy and sell through safe, legitimate channels. This law also protects dealers from making costly, unintentional purchases that could hurt their business.” 


“We’ve created this law for the firearm dealers throughout Colorado who want to do their part to keep illegal guns off our streets,” said Rep. William Lindstedt, D-Broomfield. “Running serial number checks alerts firearm dealers when they come across lost, stolen or crime-involved firearms that they wouldn’t be able to sell anyway. This law helps firearm dealers protect themselves from bad purchases while making their communities safer from gun crimes.”


SB25-205 establishes a procedure to allow a federal firearms licensee to request a firearm serial number check before purchasing a firearm from an individual. Under the law, local county sheriff’s offices must complete the serial number check within three business days of the request. 


If a licensee has a reason to believe that a person sold or attempted to sell a firearm that is stolen, lost, or involved in an open criminal investigation, they will be required to report the information to law enforcement within 48 hours. Colorado Democrats have passed numerous laws to keep firearms out of the wrong hands, including laws to require gun owners to report when their firearm has been lost or stolen and properly store their firearms when not in use, including in their vehicles. The legislature also cracked down on “ghost guns” to keep unregulated, untraceable firearms out of our communities.

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