The UK Approach to Unmanned Aircraft Systems report from Concepts and Doctrine Centre (DCDC)

http://www.mod.uk/NR/rdonlyres/F9335CB2-73FC-4761-A428-DB7DF4BEC02C/0/20110505JDN_211_UAS_v2U.pdf

Photos of UK drones

 BAE Mantis

 BAE Taranis