In backing of the FY11 Applied Research and Development in Forensic Science for Criminal Justice

Purposes, the target of the exploration is to decide the possibility of utilizing advanced pictures of

untreated inert fingerprints for ID purposes to bolster the first proposition of making a

convenient handheld imaging gadget for inactive fingerprints. Our strategy is to gather dormant

fingerprints pictures utilizing basic, economically accessible equipment and afterward have those pictures

freely assessed to decide the legitimacy of our methodology.

Our accumulation philosophy utilized photographic procedures, unearthly channels, imaging gadgets, and

different light sources. The exploration concentrated on two key components:

1. The best technique and instruments to dependably catch valuable pictures.

2. Whether the caught inactive prints were identifiable by a dormant print analyst (LPE) or

Fitting's Automatic Fingerprint Identification System (AFIS).

We built up a strategy to catch untreated inert fingerprints from particular substrates at a

quality-level like cleaned inert fingerprints and set up certainty that these pictures can be

utilized by an AFIS or an inactive print inspector for recognizable proof purposes.

This record is an exploration report submitted to the U.S. Branch of Justice. This report has not been distributed by the

Office. Assessments or perspectives communicated are those of the author(s) and don't inexorably mirror the authority

position or approaches of the U.S. Bureau of Justice.

NIJ Award #2011-DN-BX-K536 – Final Technical Report

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Chapter by chapter guide

Theoretical 2

Official SUMMARY ..................................................................................................................................5

1 INTRODUCTION...............................................................................................................12

2 MATERIALS AND METHODS ............................................................................................13

Brightening Devices................................................................................................................................13

Imaging Devices......................................................................................................................................15

Camera Lenses........................................................................................................................................16

Phantom Filters ........................................................................................................................................16

Foundation Substrates...........................................................................................................................17

Test Bench Development........................................................................................................................19

Periods of Research and Trials.................................................................................................................21

3 RESULTS...........................................................................................................................26

Stage 1 - UV Light Excitation ..................................................................................................................26

Stage 2 - Visible Light Excitation.............................................................................................................27

Stage 3 - LED Ring Light with Macro Lens ..............................................................................................27

Stage 4 - Light Guide with Macro Lens...................................................................................................28

Stage 5 - Dusted Fingerprint Comparison ..............................................................................................30

Stage 6 - Smartphone Images ................................................................................................................30

Stage 7: NFSTC Sample Items................................................................................................................31

4 CONCLUSIONS .................................................................................................................31

5 REFERENCES ....................................................................................................................33

6 DISSEMINATION OF RESEARCH FINDINGS ......................................................................34

Reference section A. Pictures Collected from Phase 1 (UV Light Excitation) .....................................................35

This record is an examination report submitted to the U.S. Branch of Justice. This report has not been distributed by the

Office. Feelings or perspectives communicated are those of the author(s) and don't as a matter of course mirror the authority

position or arrangements of the U.S. Branch of Justice.

NIJ Award #2011-DN-BX-K536 – Final Technical Report

4

Reference section B. Pictures Collected from Phase 2 (Visible Light Excitation) ...............................................37

Reference section C. Pictures Collected from Phase 3 (LED Ring Light with Macro Lens).................................40

Reference section D. Pictures Collected from Phase 4 (Light Guide with Macro Lens)......................................48

Reference section E. Pictures Collected from Phase 5 (Dusted Fingerprint Comparison).................................62

Reference section F. Pictures Collected from Phase 6 (Smartphone Images) ...................................................65

Reference section G. Pictures Collected From Phase 7 (NFSTC Sample Items)..................................................69

Reference section H. Ordinance EOS 7D Specifications...........................................................................................78

Reference section I. Motorola DROID X Specifications....................................................................................91

Reference section J. Camera Lens Specifications.............................................................................................95

Index K. Otherworldly Filters Specifications..........................................................................................96

This record is an exploration report submitted to the U.S. Division of Justice. This report has not been distributed by the

Office. Conclusions or perspectives communicated are those of the author(s) and don't as a matter of course mirror the authority

position or approaches of the U.S. Bureau of Justice.

NIJ Award #2011-DN-BX-K536 – Final Technical Report

5

Official SUMMARY

Portrayal of the issue

Recuperating inactive fingerprints is a procedure that commonly includes the utilization of chemicals or

powders, lifting tape, and potential transport of materials to a lab. Once recuperated, the fingerprints might

be analyzed and contrasted with known fingerprints to distinguish the person that left them behind. This

practice is generally used to distinguish a man of hobby that might have been included in a wrongdoing or present

at a wrongdoing scene. This technique is valuable when time can be assigned and powders and chemicals are

promptly accessible to utilize. In any case, what happens when time is not accessible? What is the technique to gather

inactive fingerprints when materials can't be dissected at a lab or when the authority would not like to

leave hints of powders or chemicals? Is there a speedy and simple technique that can be executed to

gather solid idle fingerprints?

Past exploration has presumed that tidying powders and chemicals are required to catch

inactive fingerprints from a huge number of surfaces. These powders and chemicals give a complexity

improvement so the client can see and catch the idle unique mark for distinguishing proof purposes.

In spite of the fact that it is standard practice to utilize tidying powders or chemicals to uncover inert fingerprints, a few

apparatuses do exist that permit the client to gather untreated idle unique mark pictures. One of these instruments

require the utilization of a specific review lens and the utilization of a 254nm UV light source1

. Clients of this device

have depicted the review framework as lumbering with long setup times and as being conceivably

unsafe because of risky shortwave UV light discharges. Along these lines, further research is expected to discover a

more effective technique to diminish the time and hardware required to catch untreated inert prints.

This report gives a nitty gritty depiction of the attainability examine that was performed in the

push to digitally extricate untreated inactive fingerprints with a Canon SLR and a Smartphone camera. We

look at the changed employments of phantom channels and lighting systems to promote enhance the picture

quality. Also, we apply our strategies to various substrates, for example, fired, glass, acrylic, pipe

tape, metal, and vinyl tape, to accomplish appropriate differentiation levels to deliver pictures with perceivable

unique finger impression edge points of interest.


This record is an examination report submitted to the U.S. Bureau of Justice. This report has not been distributed by the

Office. Sentiments or perspectives communicated are those of the author(s) and don't as a matter of course mirror the authority

position or arrangements of the U.S. Branch of Justice.

NIJ Award #2011-DN-BX-K536 – Final Technical Report

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Reason, Goals, and Objectives

This exploration was intended to address the previously stated issues by performing an achievability

investigation of catching untreated dormant fingerprints rapidly and dependably for recognizable proof purposes. The

essential objective is to bolster our concept of making a gadget that can picture untreated dormant unique mark

pictures and after that utilization those pictures for recognizable proof purposes. To accomplish this objective, a few variables will

must be explored.