FOREN part 3

76問 • 1年前

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Identification of fingerpritns relies on pattern matching followed by the detection certain ridge characteristics, also known as

GALTON'S DETAILS

It is a single ridge which divides into two or more ridges

BIFURCATION

One single ridge that split into two or more branches or the forking or the splitting of one ridge into two ridges

BIFURCATION

is where the ridge path divides forming a Y shape with legs having the same length

BIFURCATION

Is when two bifurcation develop next to each other on the sae ridge, a unique formation

TRIFURCATION

The point at which one friction ridge divides into three friction ridges

TRIFURCATION

A ridge formed by a bifurcation but which does not remain open, after running along side by side for a short distnace, the splitting ridge meet agin to form a single ridge

RIDGE ENCLOSURE

It is a ridge in the course of it flight, divide or fork. The two forking ridges meet again at a certain point to form a single ridge

RIDGE ENCLOSURE

A point where ridge terminates or ends

RIDGE ENDING OR ENDING RIDGE

Ridge that ends abruptly

RIDGE ENDING

The abrupt ending of a ridge that has previously continued for a quite distance

RIDGE ENDING

A ridge that connects one ridge to another, it is sometimes called railway tie

RIDGE BRIDGE/CROSSOVER

A connecting friction ridge between parallel runing ridges, generally right angles

CROSSOVER

is a short ridge which interconnects to another parallel ridges

CROSSOVER

The splitting apart two ridges after running parallel

DIVERGING RIDGE

The point where two ridges whcih have been running together in parallel fashion, tend to separate and continue on another course

DIVERGING RIDGE

The meeting of two ridges after running parallel

CONVERGING RIDGE

A ridge which is also called a delta, two ridges which meets at a certain point

CONVERGING RIDGE

A bifurcation in which one branch is remarkably short, ending near the original split or fork

SPUR

A bifurcation with one short ridge branching off a longer ridge

SPUR

A very short ridge, usually one or two pores, jutting out from a free-flowing ridge

SPUR

The ridge path divides and one branch comes to an end

SPUR

A very short island of basically equal length and width

DOT

A period of fragmentary ridge which has a resemblance to a period or a series of____

DOT

A very short section of a ridge, usually round in contour, with probably only one pore showing

DOT

A short ridgeat the top or summit of a recurve usually at the right angle

APPENDAGE

A ridge which remarkably short than the other

SHORT RIDGE

A ridge that is not too long or not too short

SHORT RIDGE

Group of series of short ridges less than 3mm in length

FRAGMENTARY RIDGE

It is a two ridges which crosses each other

INTERSECTING RIDGE

The ridge that curves back in the direction from which is started

RECURVING RIDGE

Are two innermost ridges which start parallel, diverge and surround or tent to surround the patter area

TYPE LINE OR SKELETON OF PATTERN

They serve as basic boundaries of a fingerprint pattern

TYPE LINE OR SKELETEN OF PATTERN

Is the part of fingerprint pattern in which the core, delta, and ridges appear enclosed by the type lines

PATTERN AREA

Focal Points of Pattern

core, delta

Is a point on the ridge formation usually located at the center or heart of the pattern

CORE

The core is also known as

INNER TERMINUS

is a point on the ridge formation at or directly in front or near the center or divergence of the type line

DELTA

Common deltas

Bifurcation, Short ridge, Ending ridge, Converging ridge, Dot, Recurving ridge

Refers to the general formation of the ridges found within the pattern area

FINGERPRINT PATTERN

General Patterns

Arches, Loops, Whorls

A pattern in which the ridges flow from one side to the other side without recurving.

ARCH PATTERN

It has no delta and core

ARCH PATTERN

The Arch pattern frequency of appearance in all fingers is ___ %

Characteristics of ARCH pattern

The ridges flow without recurving, No delta and core, No ridge count

A pattern in which the ridges start at one side of the pattern goes toward the upper corner of the opposite side, from which they came originally, forming a loop with core in the center and a delta at the edge of the pattern area

LOOP PATTERN

Loop pattern occurs about ____% of all fingerprints

65%

Characteristics of LOOP pattern

There must be a sufficient and recurve, There must be a delta and core, There must be a ridge count of at least one

A pattern in which the formation of the ridges is usually circular of spiral

WHORL PATTERN

It has two or more deltas and all deltas and the areas between them must be recorded.

WHORL PATTERN

The Whorl Pattern occurs about ____% of all fingerprints

30%

Characteristics of Whorl Pattern

There must be a core, Two or more deltas

The ridges enter from one side to the other side without recurving, it has a slight upward curve or wave at the center with no angular ridge formation or upthrust

PLAIN ARCH

A type of pattern which most of the ridges appear like an arch and ridges at the center shape like a tent

TENTED ARCH

The ridges raise higher at the center or one with an upward thrust having an angle of 45 degrees.

TENTED ARCH

This pattern resembles like a loop but does not possess all the characteristics or essentials of a loop.

TENTED ARCH

Types of Tented Arch

The type in which degrees at the center form a definite angle -90 degrees, The type which one or more ridges at the center form an upthrust -45 degress, Type approaching the loop type, possessing two of the basic or essential characteristics of the loop, but lacking the third.

Is an ending ridge of any length rising at sufficient degree from the horizontal plane

UPTHRUST

The termed derived from the bone found or situated at the side of the thumb finger of the hand called radius bone

RADIAL LOOP

It is called as _____ because the direction of slant of the ridges flows towards the direction of the thumb

RADIAL LOOP

Atermed after the bone of the forearm located at the side of the little fingers called ulna bone

ULNAR LOOP

It is called ____ because the downward direction slant of the pattern flows toward the direction of the little finger

ULNAR LOOP

A pattern in which one or more of the ridges form a series of a circle or spiral at the center of the pattern

PLAIN WHORL

This pattern can be an oval, spiral, circular or any variant of a circle

PLAIN WHORL

This pattern forms like a loop pattern but possess all the essential or charcteristics of a whorl since the pattern consist of two deltas.

CENTRAL POCKET LOOP WHORL

A pattern which consist of at least one recurving ridge, or an obstruction at right angles to the line of flow, with two deltas, between which when an imaginary line is drawn, no recurving ridge within the pattern area is cut or touched

CENTRAL POCKET LOOP WHORL

When an imaginary line is drawn from one delta to other, at least one recurving ridge within the inner pattern area is cut or touch

PLAIN WHORL

A pattern in which consist of two seperate loop formation with two distinct and seperate shoulders of the loop

DOUBLE LOOP WHORL

Originally there are two types of Loop whorl named

Lateral Pocket Loop, Twinned Loop

Has abandoned in distinguishing the Lateral pocket loop and Twinned loop because of difficulty in tracing and locating the loop, so both were considered as double loop

FBI

Is those pattern whose core points have them exist on the same side of one of the deltas

LATERAL POCKET LOOP

The ridges containing the core points have them exist on the different side

TWINNED LOOP

A pattern which consist of two or more type of pattern in a single pattern area with rhe exception of plain arch

ACCIDENTAL WHORL

One of the significant factors in the classification of loop fingerprint patterns is the

RIDGE COUNTING

The counting of the number of Ridges or characteristics intervening between the imaginary lines or touching, or passing the line of count within the imaginary line between the Core and Delta, excluding the two teeminusss in the court

RIDGE COUNT

Refers to the process of counting the ridges that touch or cross an imaginary line drawn between the core and the delta

RIDGE COUNTING

CLAW J 2

Allysah Marie Ares · 80問 · 2年前

CLAW J 2