More than half of the keys that Phoenix Fire Department uses to access commercial buildings throughout the city have gone missing, officials said. The keys open lock boxes attached to the exterior walls of retail businesses, office buildings, apartment complexes, banks and the like, and are commonly referred to as “Knox-Boxes.” Each lock box contains a key specific to the building that firefighters can access in the event of an after-hours emergency.
http://www.azcentral.com/story/news/local/phoenix/2014/04/14/phoenix-fire-missing-keys/7724577/
