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National Security Letters — Part 1
Page 892
892 / 1188
SRRCRET
Typical NSL Retention and Database Use
Phone Records:
SYNSL toll billings records are A em into Telephone Applications (TA) after receipt. Most
information in TA is uploaded into.FB of analysis. TA is shared in two forms: a “raw” version
that.contains individual phone call events, and an “indexed” version that does not contain individual phone bl
call events. Most indexed TA information is a : Wand FTTTF. The information can also be
uploaded from TA to other applications (such mn analysis. NSL-derived information is also b2
placed in Automated Case Support (ACS) with case information. With the exception of designated
restricted case files, most ACS information is available as a dataset in Investigative Data Warehouse (ID W).
bl
Phone Records
Other applications
ACS (Case
Information)
TA( indexed)
Email] Records:
$) NSL electronic transactional information is typically entered into ACS upon receipt. With the
exception of designated restricted case files, most ACS information is available as a dataset in IDW. lon
Counterterrorism email information can be manually entered into FBI Email information may in
some cases be entered into spreadsheets and other dalabases for analysis.
Email Records
bl
Spreadsheets
/ODatabases
Financial and Credit Information:
(U) Financial and credit information is typically entered into ASC upon receipt. ACS mformation ts
uploaded into Investigative Data Warehouse (IDW). Financial and credit information may in some cases
be entered into spreadsheets and other databases for analysis.
Financial/Credit
Information
Spreadsheets
/Datakases
DATE: 06-15-2007
CLASSIFIED BY 675179/DNH/KSRSRY
REASON:
1.4 (9g)
DECLESSIFY OW: 08-15-2032 ALL INFORMATION CONTAINED
HEFEIN 15 UNCLASSIFIED EXCEPT
WHERE SHOWN OTHERWISE
s5fret
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