TOP SECRET STRAP1

I
I

Speaker identification systems (SID)
Resul t:
A couple of months ago we deployed a 5-way speaker id system aga inst a network
of high level individuals involved w ith the Afghan narcotics trade. The system has
been put to imag inative use by OP I-LANG /OPI-SC in that it is running against a
w hole zip code that brings in a large amount of traff ic . T his has enabled some
speculative task ing of further selectors seeking more communica tions for these
targets and allow ing the lingu ists to effectively filter out unw anted calls . The princ ipal ,
the main subject of SOCA OP BRABILLA , was arres ted last wee k in Jakarta and is
now to stand trial in the US on charges related to the narcotics industry and
support ing attac ks on US sold iers in Afghanistan . The speaker id system contribu ted
to th is success by identify ing 2 new numbers for this principal target and thus helped
to keep track of his activities right up to the time of his arrest.
2 of 6
This informationis exempt from disclosureunder the Freedomof InformationAct 2000 and may be subjectto exemptionunder
other UK informationlegislation.Referdisclosurerequests to GCHQ on
(non-sec)or email

TOP SECRET STRAP1

 TOP SECRET STRAP1
The system will now be re-built to target the remain ing 4 narco barons and will
hopefully produce some similarly effective results .

I

-

I

3 of 6
This informationis exempt from disclosureunder the Freedomof InformationAct 2000 and may be subjectto exemptionunder
other UK informationlegislation.Referdisclosurerequests to GCHQ on
(non-sec)or email

TOP SECRET STRAP1