Tatami (Japanese armour) the other related parts of a full suit of Japanese armour. Collapsible head protection such as "" and other collapsible armor are also "tatami" armor; a traditional kabuto could also be part of a tatami gusoku. Tatami armour was lightweight, portable, convenient for transportation, and they were manufactured inexpensively for the ashigaru light infantry. Tatami armours were worn by all samurai classes from the highest class to the lowest class. The higher class samurai wore elaborate armour while the lower class samurai and retainers wore simpler versions. In his book "Arms and Armor of the Samurai: The History of Weaponry
Body worn video (police equipment) Zero. The use of body-worn cameras by law enforcement offers potential advantages in keeping officers safe, enabling situational awareness, improving community relations and accountability, and providing evidence for trials. A legislation regarding body-worn camera has been enacted by the Ministry of Public Security, making the body-worn camera standard and mandatory policing equipment for law enforcement agencies in China. Two million police officers are being equipped with this camera in China. The police in Hong Kong has been experimenting with body cameras since 2013. Based on positive findings from an (unpublished) evaluation, the decision was taken to supply all front-line officers