Living not far from Boston–a city with what most forum members would likely agree has restrictive knife laws–I sometimes wonder how those laws are put into practice. The most relevant restriction is the limit of blade length to 2.5 inches a rule which impacts some of my knife purchases even though those laws only apply to me in the event of me going into Boston. With this in mind I read this in the local online newspaper: [The perpetrator] had a folding knife protruding [from] his jacket, according to a statement from Boston police. Police attempted to take the knife from Villalona-Torres and discovered that he also had a Glock 22 .40 caliber firearm loaded with six rounds of live ammunition, 12 plastic bags containing marijuana, as well as an undisclosed amount of cash, officials said. I don't always carry a knife, especially in settings where it is unlikely that I'll need one and especially in places where carrying a knife could land me in trouble. And, were I to work in the city of Boston again, I would carry an SAK classic or a small traditional or my Foelholter Frikky if i were to carry a knife at all. Even in my heavily wooded suburban town I only carry my larger knives on my property as that is where I need and use them and carry a smaller knife if I'm hiking or some similar activity. How do knife laws affect your decision to carry a knife and which one to carry?