This is an important note:
Colorado law allows government buildings to be declared “gun-free zones,” but Colorado law insists that when a government promises a gun-free zone, the government must keep the promise: Licensed carry may be forbidden in a government building only if all entrances to the building are controlled, and if the public entrances have metal detectors manned by armed guards.Read the whole thing.
Under Colorado law, therefore, government entities may not simply post a no guns sign and leave law-abiding, licensed citizens defenseless against violent criminals.
The Concealed Carry Act did not disturb the property rights of business owners — if they wish to, they may prohibit concealed carry on their business premises. Fortunately, very few Colorado businesses have done so. But one that did was Century Theaters. Compounding the problem, Century Theaters did not create an actual “gun-free zone” (as some government buildings in Colorado have). Instead, Century Theaters created a pretend gun-free zone. Century Theaters did nothing to prevent armed criminals from entering the theater.