The British Secret Service (SIS) The security service is comprised of three branches each of which provide graduates, post graduates, linquists, IT specialists and writers a wide range of career opportunities in intelligence work. 1. MI5:  Staff 4000: It is responsible for protecting the UK against covertly organized threats to … Continue reading Plausible Paranoia – How Westminster hoodwinked the Scots in 1707 and 2014 and their Preparedness to Do So Again – Part1 – Secret Intelligence Services