EC
Forrester Principal St
Neots Community College
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12 January 2009 |
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Dear
Mr Forrester Facial According to the
Daily Mail [1], St Neots are testing the use of
facial recognition technology to determine which pupils are on
the premises. The business case
in favour of using biometrics depends on the reliability of that
technology. We all have confidence
in the expert use of fingerprinting by the police, and in the
forensic use of DNA to identify people. Quite
rightly. Traditional fingerprinting and DNA work. But that
is not the technology being tested at St Neots. Biometrics based
on facial geometry have a long history of not working [2]. Historically, you
should expect this trial to fail – a subject currently being pursued
with the Home Office Scientific Development Branch
[3]. Typically, about 30% of people
cannot be recognised by systems using facial geometry. That is
on the same day that they are registered/enrolled
into the system. Two months later, typically, facial geometry
systems fail to recognise about 60% of people
[4]. It is important to run your trial
for at least three months. As an early adopter
of the technology in the education sector, St Neots may be offered
reduced rates for acquisition, installation, training and support.
But if the equipment fails to recognise 60% of students after
the Easter holiday, then the business case fails at any price. Please be sceptical,
Mr Forrester. Yours sincerely David Moss
[1] Laura Clark, 10 January 2009, Daily Mail, 'Face scanners to be introduced in
British schools in new 'Big Brother' row', http://www.dailymail.co.uk/news/article-1110782/Face-scanners-introduced-British-schools-new-Big-Brother-row.html# [4] http://dematerialisedid.com/PDFs/feasibility_study031111_v2.pdf,
see para.52(c)
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