In my state of Wisconsin, we got switchblades and numerous other 'gravity' examples now classified as folding knives and legal to carry. I believe the change in statute is about three years old.
That might sound like a great 'new' program, but the police officers I talked to over coffee all said that confiscating every knife they see like they were illegal drugs was simply a waste of man-power. Let's be honest, if you get cut by a Boy Scout Knife or a classy Sicilian stiletto you're going to bleed.
In reality, no one really cared--except for the police who had to assure the populous that these evil knives would be driven from the streets of our honest, law enforcement funding public. If memory serves me (and it seldom does) I believe it was a bagel I was slicing with some scalpel like contraption at the Barnes & Nobel cafe' as the police were sitting at the table next to us.
Personally, I feel sorry for the local police, many of them are clients. They might have to confiscate a knife from a drunk one minute, and then write a "broken tail-light" ticket the next.
BTW, I do use pocket clips on most of my EDC knives if that style permits. That way the item is not 'concealed' and it makes law enforcement that much easier. Oh, I've also found that "gray hair" is another aspect of being a nice guy to the law...
It's got a 4 inch blade and cost about 90 dollars. I've had it about a year and it has lasted so far, even after I overcame the compulsion of popping the blade in and out a 1000 times after I got it. 
