This is what I have gathered from a few different sources (I don't know them so I can't vouch for them).
Deprived is known IRL as 'Jon W'.
He has done work in the UK as a forensic expert (i.e., in court as an expert witness on IT matters).
Maybe it's this guy:
http://uk.linkedin.com/pub/jon-walklin/1a/b3a/a80Jon Walklin's Experience
Director of Digital Forensics
Guidepost Solutions Limited
November 2013 Present (6 months) London, United Kingdom
Director of Technology Development
Guidepost Solutions Limited
May 2013 Present (1 year)
Managing Director. Principal~Forensic Video
Diligence BSB Forensic
May 2011 April 2013 (2 years)
Managing Director, Principal Forensic Video
BSB Forensic Limited
November 1997 May 2011 (13 years 7 months)
Senior Consultant
Network Security Management
1991 1997 (6 years)
Well, I'd call that a potential match. According to their website Guidepost Solutions' London office is at:
Edit: I've asked one source about this potential match. I'll call that number when it's business hours in the UK again.