Q, several questions:
1. How is "manufactured purpose" defined, where, and by whom?
Its not and never will be, Hawaiis laws are intentionally vague so that they can read it 100 different ways. Their is nothing in the law about the intention of design, Its an opinion based system, If under the cops opinion its a weapon it is one, Until proven otherwise.
2. Would a machete or other blade need to be sheathed?
No, but yes. The law does not say, But if its not sheathed they could argue that you are brandishing it in which case it becomes a weapon, .
3. Are you saying that "you can walk around" AND "you won't be hassled by law enforcement"? Or just that "it would be legal"?
[bYou can walk around and you might or might not get hassled, ]Depends on the cop, Again because its an opinion based law every one is different. .[/b]
§134-51 Deadly weapons; prohibitions; penalty. (a) Any person, not authorized by law, who carries concealed upon the person's self or within any vehicle used or occupied by the person or who is found armed with any dirk, dagger, blackjack, slug shot, billy, metal knuckles, pistol, or other deadly or dangerous weapon shall be guilty of a misdemeanor and may be immediately arrested without warrant by any sheriff, police officer, or other officer or person. Any weapon, above enumerated, upon conviction of the one carrying or possessing it under this section, shall be summarily destroyed by the chief of police or sheriff.
"Other deadly or dangerous weapon" is limited to instruments whose sole design and purpose is to inflict bodily injury or death. 55 H. 531, 523 P.2d 299.
1) You solve that problem by contacting the manufacturer and asking them to provide you with documentation stating the intended purpose of the item you wish to buy.
This is why I don't carry cold steel products, because they state that even though it is listed as a functional tool, they still consider most if not all of their products self-defense applicable as well.
2) Lets exercise some common sense here. If you have a machete in your truck for emergency purposes or as a functional tool that may happen to be there for self-defense, then there shouldn't be any problems. If you are walking around on the street with a machete in hand, it may draw up some suspicion as to what you are doing. Personally, if you really want to carry a machete, I would keep it sheathed, and you better have a good reason to be carrying it aside from just self-defense.
I used to like to carry my bowie knife (that was defined by the manufacturer to be a tool) because I used it as a multi-purpose tool, and as potential protection from wild animals when working in my agroforestry and gardening areas. If I needed to use it in self-defense, then so be it, but I never carried it with the sole purpose of it being for 'self-defense'.
3) No, it depends on the police officer.
OGC has had several people harassed and almost arrested on several occasions because officers in HPD think that they can interpret the law the way they see fit. This is due to them not having a basic standard operating procedure with regards to how the law is interpreted.
You get around this by knowing the statutes by heart and having a legitimate reason for carrying what you are carrying, aside from self-defense.
I stated earlier that you could basically walk around with a machete; theoretically yes, but you have to remember that if you get harassed, you better be able to talk your way out of it.