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) on some of their officers, 25 have plans to implement body cams and 30 cities do not use or plan to use cams at this time". Investigations have shown that although in many states the usage of body worn cameras is mandatory, there are instances where some officers have failed to adhere to the law. From 2015 until 2017, there have been nationally recognized scenarios of fatal shootings in San Francisco, Alabama, Washington D.C., and Los Angeles in which the officer was wearing a body camera, but did not activate it during the incident. The Los Angeles Police Department is