The memorial at the King Soopers on Table Mesa in Boulder, United States on March 24, 2021. Rachel Woolf for The Washington Post via Getty Images After a supermarket shooting, Colorado repealed a law banning cities from passing local gun laws. Boulder now hopes to enforce its 2018 assault weapons ban that a judge had previously struck down. Most cities in the US are not able to pass local gun laws due to state laws banning the practice. See more stories on Insider's business page. Months after ten people were killed in a mass shooting at a Boulder, Colorado supermarket, the state's government took swift action.Legislators have passed six gun laws since the shooting in March, with Gov.