A federal judge on Thursday permitted firearm owners and two gun-rights organizations to proceed with their constitutional ...

Morning Mix Gunman broke into Colo. Supreme Court building, fired shots, police say No one was injured and officials said the overnight incident is not believed to be related to recent threats ...

Colorado's second-highest court ruled on Thursday that two residents of Boulder County could not sue the county's ...

Gun rights groups plan to file lawsuits to dismantle the National Firearms Act after Trump signed a bill eliminating excise ...

A judge has been hearing testimony about a challenge to one of the convictions of a former death row inmate in Colorado.

A federal judge upheld Colorado’s restriction on firearms sales requiring buyers to be 21 or older after Rocky Mountain Gun Owners and two people looking to purchase firearms sued Democratic Gov ...

A federal appeals court ruled Tuesday that a Colorado law raising the age to purchase a gun from 18 to 21 can take effect while the legal battle over it continues.

The decision in Colorado comes in contrast to one issued by the Supreme Court in 2022 in which justices determined that New York issued unconstitutional requirements for carrying a concealed ...

A man who killed 10 people at a Colorado supermarket has been found guilty of murder in the 2021 attack, becoming the latest person to fail in an attempt to be acquitted by reason of insanity.

In 2020, the U.S. Supreme Court ruled that states could prevent defendants from pleading insanity without violating their constitutional rights.