It is reported that controlled knives belong to articles restricted by the people's Republic of China. According to the standard for the identification of controlled tools, daggers, three edge scrapers, spring knives with self-locking devices, other similar single edge, double edge and three edge sharp knives, as well as various single edge, double edge and multi edge knives with a tip angle of more than 60 degrees and a blade length of more than 220 mm, can be identified as controlled tools. In case of controlled cutting tools, the controlled cutting tools shall be provided for filing before shipment. In the actual transportation process, as long as the cutting tools are basically filed, they can be shipped. For filing, they need to go to the local police station for filing.