<http://www.gsnmagazine.com/cms/features/news-analysis/909.html>
http://www.gsnmagazine.com/cms/features/news-analysis/909.html 
 

ICE investigators plan to "read" typewriter ribbons


By Jacob Goodwin,  <http://www.gsnmagazine.com/cms/authors/1.html>
Editor-in-Chief

Published July 22nd, 2008

 Ribbon-Web <http://www.gsnmagazine.com/cms/lib/1120.jpg> 

It may seem a bit archaic, but the Immigration and Customs (ICE) unit of DHS
is planning to purchase a piece of forensic equipment, known as a Ribbon
Analysis Workstation, which will enable its investigators to capture,
download to a computer and print out the contents of single-strike carbon
typewriter ribbon. 

This technology, which would sound more at home during the Cold War than in
2008, is supplied by a UK-based firm called Envisage Systems Limited
<http://www.envisagesystems.co.uk/> . 

"The surprising continuing widespread use of single-strike carbon typewriter
ribbons, from which typed text can be read directly, provides investigators
with a potential source of evidence and information," explains the Envisage
Web site. 

The resulting display contains everything on the original ribbon, including
errors and blemishes. 

The workstation, known as RAW, reduces the necessity for a human to handle
the tape itself (which could damage potentially important evidence) and
reduces operator costs for what is a highly labor-intensive transcribing
task. 

According to Envisage, the manual transcription of a three-row typewriter
ribbon might require two or three weeks of operator effort, while its RAW
device can handle the same task in one day (requiring only one to two hours
of operator involvement.) 

Beyond explaining that the RAW workstation "is designed to enable
specialists to transcribe and analyze any of the wide range of single-strike
film typewriter ribbons," the solicitation issued by ICE on July 21 did not
make clear how the agency plans to use the newly-purchased equipment. ICE
indicated that the "place of performance" would be at its offices in McLean,
VA. 

Established in 1990, Envisage in based in Berkhamsted, Herts, UK. It is a
supplier of a variety of industrial vision inspection systems. 

The theory of operation of the RAW equipment can be split into two distinct
tasks: Recording and Processing. First, the ribbon is transported at a
controlled speed from one spool to another in front of a light unit that
illuminates the ribbon for the camera, which records the data. 

  <http://www.gsnmagazine.com/cms/lib/1121.jpg> "Before processing may
commence," explains Envisage, "the system must be taught the basic layout of
the text on the ribbon." 

The RAW is able to process and print out non-Roman characters, including
Japanese and Cyrillic alphabets, together with mathematical and technical
symbols. 

"This will be set out in a format which shows all the characters as they
would have appeared on the original typed page with the absence of spaces,
carriage returns and paragraphs," says the company.  


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