To my knowledge can carry a folding knife of any length in DC as long as you arent carrying it with the intent to use it to hurt someone. I called DC metro police when I got my job in DC and they told me that. I didnt ask a lawyer tho.
Yes technically true by the letter of the law. It doesn't have to be folder per se either.
However there is a risk, but not a definite certainty, that your intent can be presumed based on the knife being that large. But then again, DC also has case law on the books that knives under 3" can still be ruled weapons if your behavior suggests you have obvious criminal intentions. The case in question involved a teen trying to burglarize a house, who ran from the police and "ditched" his knife during the pursuit. It was still ruled a concealed weapon despite it's size.
The more I look into it, the more I think you are right cb51. I was looking at some Cold Steel replicas of blackthorn walking sticks. Do you have any experience with those?
I figure I can legitimately carry one of those for self defense and just have a folder for utility stuff.
When we meet up, I'll bring along some of my collection, so you can get a feel for what you are looking for.
I have had a few kubotans but they never seemed practical like the pen..
I also agree with the suggestions about a small flashlight - so many uses - I always have at least one..
Thank God I no longer have to work in that city... I have carried this into many a federal bldg as a money clip...
http://www.spyderco.com/catalog/details.php?product=12
It was a pleasure to meet up with you today cb51. Thanks for the advice.
So. It happened today.