Image Based Question-65884

From the following options,which one is not a basic pattern of the identification feature shown in the picture below ?

A. Lines

B. Loop

C. Whorl

D. Arch

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Correct Answer » A Explanation

Ans: A. Lines
The image shown is of a Finger print.

Identification of an Individual in Forensic Science

1. It is the study of epidermal ridges and their configurations.
2. Finger prints are present from birth both on epidermis and dermis, remain constant through out life and can’t be altered without destroying true skin.
3. Ridge pattern of fingerprints appears as early as 12 weeks of IUL and is completed by 24 weeks.
4. Locard’s principle of exchange

• When 2 objects come in contact with each other, there will be always a mutual transference of material from each other.

Fingerprint / Dactylography / Dermatoglyphics :

1. Dactylography is the process of taking impressions of the pulp of fingers and thumbs on an unglazed white paper and examining them with a magnifying lens.
2. Loops (67% most common) > whorls (25%) > arches (7%) > composite (2% least common) are four main types of pattern.

• Types:

Exemplar prints:

• Fingerprints deliberately collected from a subject, whether for purposes of enrollment in a system or when under arrest for a suspected criminal offense.

Latent print:

• It means any chance or accidental impression on a surface, regardless of whether it is visible or invisible at the time of deposition.
• Latent Prints are Detected by: Radioactive sulfur dioxide,Sudan black.Osmium tetraoxide,Electronography.

Plastic print:

• A finger or palm impression deposited in a material that retains the shape of the ridge detail.
• Example: Soft matrrials like wax, soap, clay, etc.

Visible print :

• impression on blood, paint, dust, dye which can be recorded by photography.