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Scope

1.1 This practice provides procedures to be used by forensic document examiners (Guide E444) using image capture and storage technology.

1.2 These procedures are applicable whether the use of the image capture technology involves an item(s) associated with a matter under investigation (questioned or known items), or is for reference.

1.3 These procedures include evaluation of the sufficiency of the available imaging capture and storage technologies.

1.4 Procedures are also outlined for image archiving.

1.5 The particular methods employed in a given case depend upon the nature of the item, or the question at hand, or both.

1.6 This practice might not cover all aspects of the use of image capture and storage technology involving unusual or uncommon items.

1.7 This practice cannot replace the requisite knowledge, skills, or abilities acquired through appropriate education, training (Guide E2388), and experience and should be used in conjunction with sound professional judgment.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Significance and Use

The procedures outlined here are grounded in the generally accepted body of knowledge and experience in the field of forensic document examination, forensic photography, and forensic digital imaging. By following these procedures a forensic document examiner can use image capture technology reliably in support of examinations. This support can include:

Documentation of the item(s) submitted for examination, its condition upon receipt, and its condition at various points during the examination process;

Demonstration of findings and the bases for determinations;

Visualization of features and characteristics not readily perceptible to the human eye.

The effects of prior storage, handling, testing, or chemical processing (for example, for latent prints) can interfere with certain characteristics to an extent that can limit (or even preclude) subsequent imaging. Whenever possible, capture images of the item to be examined prior to any chemical processing. Handle items appropriately to avoid compromising subsequent examinations of any kind.

The technological evolution of hardware, or software, or both can impact subsequent ability to access archived images.

Note 1—For further discussion see SWGIT, Section 1.

Keywords

image enhancement; imaging; forensic document examination; forensic sciences; ICS Number Code 07.140 (Forensic science)

To find similar documents by ASTM Volume:

14.02 (General Test Methods; Forensic Psychophysiology; Forensic Sciences; Terminology; Conformity Assessment; Statistical Methods; Nanotechnology; Forensic Engineering; Manufacture of Pharmaceutical Products)

To find similar documents by classification:

03.160 (Law. Administration Including flags and associated symbols (emblems) of political and administrative entities, military flags, flags of organizations, etc. This group includes standards for general use)

07.140 (Forensic science)

11.020 (Medical sciences and health care facilities in general Including quality and environmental management in health care technology IT application in health care technology, see 35.240.80)

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