Term Paper: Fingerprints Put Forward a Dependable

Pages: 8 (2405 words)  ·  Bibliography Sources: 1+  ·  Level: College Senior  ·  Topic: Criminal Justice  ·  Buy This Paper


[. . .] A lot of surfaces, which were complicated to get hold of functional fingerprint as of in the past, are at the present regularly looked at productively owing to all of these scientific developments.

The laser technology has developed the probing of fingerprints all around the world. All things considered, the world of fingerprints is a stimulating one, as well as there are, at all times, novel developments expanding the techniques of discovering them (35).

Comparison of two fingerprints with AFIS technology

Analysts in the Latent Prints Section inspect fingerprints "subsequent to the fact." Each and every finger and thumb is exclusive to an entity and no two prints have ever been established to be precisely the identical as of two diverse people.

In addition, palm and footprints are in addition distinctive to each and every individual. There is just about 75 to 200 distinctiveness on a finger or thumb. The analysts employ a diversity of methods such as super-glue, carbon powder dusting, amido-black print visualization, ninhydrin spray methods, as well as argon laser identification to recognize and match prints (Janice, 112).

One of the newest advances in crime investigation is the Automated Fingerprint Identification System (AFIS). AFIS is a computerized system that accumulates the identifying individuality of all the individuals who have been charged with criminal offense and then carries out systematic computer investigation of unidentified fingerprints by optically inspecting a print and contrasting it with those on file. Prior to AFIS, fingerprint hunt had to be carried out physically, making it an unfeasible, protracted procedure to contrast an unidentified print to the millions of recognized prints on the files. The latent AFIS process has supplemented the ability of the Latent Prints Section (Janice, 121).

Fingerprint comparison for Court Presentation

The comparison of fingerprints, particularly latent fingerprints (palm prints, footprints), can be the sole most complicated job in all the fingerprint discipline. Regardless of how skilled an entity might be in all the associated subjects, it is the added aptitude to precisely contrast latent prints adjacent to recognized prints that permits the examiner to be called a fingerprint expert.

This aptitude is expanded through teaching, information, knowledge and labor under the leadership of capable fingerprint specialists (Janice, 11).

The methodology that allows these comparisons, for the presentation in courts, has three stages: analysis, comparison, and evaluation. Analysis is the assessment of the unidentified region of friction ridges and reduction of it into its fundamental mechanism.

Subsequently, the analyzed examined print is contrasted to the region of friction ridges on the identified print. The comparison begins at an ordinary setting on mutual prints, as well as the details are contrasted to each other with respect to position, figure, and comparative spots.

This assessment is methodical and chronological until all obtainable aspects of the fingerprints have been compared. Subsequently, evaluation gives an influence to comparisons and differences that are applied on the way to determining individuality (45).

Evaluation takes place all through comparison and is a continuing procedure. In general prototype uncommonness, followed by exceptional uniqueness is evaluated, together with open fields. The superior the aspect, the superior the individualizing power. The knowledge of the inspector also plays a role. The examiner might then work with one more examiner to present proof for the conclusion in front of the court.

Identification and comparing fingerprints leans in the mixture of matching or parallel and distinctively leaning uniqueness of such number and implication as to prevent the likelihood of their incidence by mere coincidence, as well as there are no peculiar differences that allocate a conclusion that the two illustrations are identical. Time and again, minute particulars in apparently comparable prints can be the dissimilarity (46).

Home burglary

Firstly, when I would be called for duty and asked to investigate a home burglary. I would, after arriving at the scene, try and discover an open rear window, open cabinets and drawers.

Upon discovering the opening I would then search for fingerprints on the open rear window or open cabinets and drawers. I would furthermore, search for fingerprints on the floor or countertops.

In probing a crime scene or possible pieces of proof, the most general item that I would search for are latent fingerprints. Being "latent," the prints are, by characterization, not readily evident to the naked eye.

As a crime scene investigators and fingerprint technicians, I have to process the proof for "latents" with powders or chemicals. I can expand the latent to the position where I can, with no trouble, visualize, photograph and lift them from the surface of the crime scene for the verification.

A would, as soon as possible, start the process of dusting and lifting latent prints. I would try to discover functional prints, smudges, in the window area, drawers and front door. If and when I find fingerprints I would, as soon as possible, run it through the Automated Fingerprint Identification System (AFIS) and try and evaluate the fingerprints.

The prompt searching of fingerprints found on the crime scene and then determining whether or not that person has any previous record with the Police or any other police agency in the country would be extremely useful for further investigation and catching the crook.


James F. Cowger. Friction Ridge Skin: Comparison and Identification of Fingerprints.

Publisher: Lewis Publishers, Inc. September 18, 1992.

Henry C. Lee (Editor), R.E. Gaensslen (Editor). Advances in Fingerprint Technology, Second Edition. Publisher: CRC Press; 2nd edition. June… [END OF PREVIEW]

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