Knife crime

Knife legislation is defined as the body of statutory law or case law promulgated or enacted by a government or other governing jurisdiction that prohibits, criminalizes, or restricts the otherwise legal manufacture, importation, sale, transfer, possession, transport, or use of knives.

The carrying of knives in public is forbidden or restricted by law in many countries. Exceptions may be made for hunting knives, pocket knives, and knives used for work-related purposes (chef's knives, etc.), depending upon the laws of a given jurisdiction. In turn, the carrying or possessing of certain type of knives perceived as deadly or offensive weapons such as automatic or switchblade knives or butterfly knives may be restricted or prohibited. Even where knives may be legally carried on the person generally, this right may not extend to all places and circumstances, and knives of any description may be prohibited at schools, public buildings or courthouses, and at public events.

In accordance with the Austrian Arms Act of 1996 (Waffengesetz 1996) it is illegal to buy, import, possess or carry weapons that are disguised as another object or as an object of common use (sword canes, e.g., or knives disguised as ink pens, brush handles or belt buckles). For ordinary knives, however, there are no restrictions or prohibitions based on blade length or opening or locking mechanism.

The Arms Act defines weapons as "objects that by their very nature are intended to reduce or eliminate the defensive ability of a person through direct impact", specifically including all firearms. Consequently, certain knives are considered "weapons" in accordance with this definition. Except for firearms, however, which are heavily regulated, such "weapons", including automatic opening lock-blade knives (switchblades), OTF automatic knives, balisongs, and gravity knives are implicitly permitted under the Arms Act, and thus may be bought, possessed and carried by anyone over the age of 18 who has not been expressively banned from owning any weapon (Waffenverbot) by the civilian authorities.

...
Wikipedia