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) any editing has been done. The number of body-worn cameras in use by the police of Australia is growing increasingly prevalent in parallel with other countries. The first bodycams or 'cop-cams' were trialed in Western Australia in 2007. Victoria has been trialing body-worn cameras since 2012, and in 2015 the NSW police announced they had invested $4 million in rolling out body-worn cameras to frontline police officers. According to research being conducted in 2016 'the use of body-worn cameras has now gathered traction in most Australian states and territories'. Some police services in Canada such as the Calgary Police Service