Lincolnshire Fire and Rescue (LFR) is the statutory fire and rescue service serving the non-metropolitan county of Lincolnshire, North Lincolnshire and North East Lincolnshire, which are covered by Humberside Fire and Rescue Service, is the statutory fire and rescue service covering the area of what was the county of Humberside (1974–1996), but now consists of the unitary authorities of East Riding of Yorkshire, Kingston upon Hull, North Lincolnshire and North East Lincolnshire in which location?