R (KM) v Cambridgeshire CC (2011) EWCA Civ 682
From Mental Health Law Online
(1) The assessment of needs was adequate. (2) There has to be a rational link between the needs and the assessed direct payments, but there does not need to be a finite absolute mathematical link, so the use of the Resource Allocation System (RAS) was lawful. (3) The explanation of the personal budget figure was rational.