The statute is vague and confusing, and will be interpreted differently by different people, including police and prosecutors. Denver, especially, is very Draconian when it comes to enforcing knife statutes. People have been arrested for carrying lockblades that were 1/4" over legal length, although the prosecutor usually tosses out the case before it goes to court. Those knives were also Spydercos made in Golden, and even though they were clipped to pockets and clearly visible the arresting officers both claimed they were "concealed."