| |
 |
| |
| Background |
| |
| For almost 100 years fingerprint
cards have been accepted as the standard means for recording
and storing fingerprint identification data. Over that period
the content, format, and quality of fingerprint cards have been
revised and refined. Fingerprint cards are now accepted as a
national standard for the exchange of fingerprint, identification,
and arrest data between criminal justice agencies. |
| |
| However, because fingerprint cards
must be physically transported and processed, substantial delays
are introduced into the identification cycle. To improve the
speed and accuracy of the fingerprint identification process
and eliminate the need for contributing agencies to create and
mail paper fingerprint cards to the Federal Bureau of Investigation
(FBI) for processing, the FBI Criminal Justice Information Services
(CJIS) Division is developing an Integrated Automated Fingerprint
Identification System (IAFIS) that will support the paperless
submission of fingerprint records. |
| |
| In support of the development of
the IAFIS and in accordance with the recommendations of the
National Crime Information Center (NCIC) Advisory Policy Board
(APB) Identification Services Subcommittee, the FBI has developed
in conjunction with the National Institute of Standards and
Technology (NIST), and the fingerprint identification community,
a standard for electronically encoding and transmitting fingerprint
image, identification, and arrest data. This standard is comprised
of an American National Standards Institute (ANSI) standard
entitled “Data Format for the Interchange of Fingerprint
Information” (ANSI NIST-CSL 1-1993), together with an Addendum,
“Data Format for the Interchange of Fingerprint, Facial
& SMT Information (ANSI/NIST-ITL 1a-1997). |
| |
| The ANSI standards define the content,
format and units of measurement for the exchange of information
that may be used in the fingerprint identification of a subject.
Such information is intended for use in the interchange between
criminal justice administrations or organizations that use an
Automated Fingerprint Identification System (AFIS), and will
provide a common interface for AFISs and related systems nationwide. |
| |
| This specification covers the remainder
of the IAFIS electronic transmissions involving fingerprints.
The basic requirements for Logical Records Type-1, Type-2, Type-4,
Type-7, Type-9, and Type-10 set forth in the ANSI standards
are also applicable to transmissions to the FBI. However, the
FBI-specific requirements for the contents and format of Logical
Records Type-2, Type-7, Type-9, and Type-10 as well as for any
special requirements for the other record types, are contained
in this specification. |
| |
| The Electronic Fingerprint Transmission
Specification (EFTS) defines the interface between IAFIS
and the States’ systems. Any changes to the data fields
or formats within the EFTS must honor previously published protocols
to ensure that the States’ systems are not adversely affected.
Since IAFIS and the States’ systems are being developed
independently, a process has been established which provides
for coordinated enhancements within the various systems while
maintaining reliable interoperability. This process is based
in the tagged field structure defined in the 1993 ANSI standard,
and a few “business rules”. The rules simply state
that field definitions cannot change over time or from system
to system. If a change is needed, a new field is defined and
assigned a new tag number. The new field cannot be made mandatory
for established functionality, but merely enhances functionality
for those systems wishing to incorporate the new definition.
With this process in place, every system on the network has
the opportunity to enhance its own system on its own schedule,
yet no system is ever forced to make a change in order to maintain
current functionality. |
| |
Source: (http://www.fbi.gov) 2007
|
| |
|
 |
| |
|
|