Are knives contraband?

Knives, all kinds of martial arts, handicrafts, gifts, etc. If the blade is uncut and the chamfer radius of the tip is greater than 2.5 mm, it does not belong to the category of controlled knives and contraband. 1, contraband refers to articles that cannot be manufactured, purchased, used, held, stored or transported without legal permission. In China, weapons, ammunition, explosives (such as explosives, detonators, fuses, etc. ), highly toxic substances (sodium cyanide, potassium cyanide, etc. ), anesthetics (opium, heroin, morphine, etc. ) and radioactive substances are prohibited items. 2. Any tool that meets one of the following criteria can be considered as a controlled tool: (1) Dagger: single-edged, double-edged or multi-edged sharp knife, with handle, tool holder and blood groove, and the blade angle is less than 60 degrees; (2) Triangular scraper: a processing tool with three blades; (3) Spring knife with self-locking device (jumping knife): a folding knife with self-locking fixed by spring or bolt after the knife body is unfolded; (4) Other similar single-edged, double-edged and triple-edged sharp knives: all kinds of single-edged, double-edged and multi-edged knives with the tip angle less than 60 degrees and the blade length exceeding 150 mm; (5) Other single-edged, double-edged and multi-edged tools with a vertex angle greater than 60 degrees and a blade length greater than 220 mm ... All kinds of martial arts, crafts, gifts and other tools with uncut blades and chamfering radius greater than 2.5 mm are not controlled tools.