Yes; they are illegal. Possession, manufacture or sale of spring knives (a butterfly knife is a spring knife under Washington state RCW 9.41.250 (2012) and would include practice butterfly knives) is a gross misdemeanor, punishable by imprisonment in the county jail for up to 364 days or a fine of up to $5,000 or both.
No they are still illegal in Washington
Yes, they are referred to in the law as "gravity knives."
Butterfly knives are not illegal to carry in MN, but it is illegal to use it as a weapon, so just don't stab anyone.
They are referred to as "gravity knives" and are prohibited.
Butterfly Knives are illegal because they are easy to conceal and can flip open easily.
no butterfly knives are legal in nc i just wouldn't carry one around anywhere
butterfly knives are legal but they must be under 3.5 inches. Balisong trainers are legal however.
Yes, Butterfly knives are illegal in Ohio. You do not have to touch the blade to open it, which is one of the factors. Most butterfly knives are over 4" also, which is another factor. Butterfly knives are often used as weapons, you don't see a carpenter using a butterfly knife to do his work, he would use something with better grip, etc...