By appointment

Express service

Blogs

Home / Blog

Anshin Mobile Notary & LiveScan

Recurving ridges, ridge counting

Recurving Ridges If a recurving ridge tends to terminate on the opposite side of the impression from which it entered, it’s usually a tented arch rather than a loop.  This is because a recurving ridge must touch or pass the imaginary line between the delta and core and at last

Read More »

More on classification of loops

Classifying Loops can be tricky. In the figure above, the ridge enters at A and exits at the same place, at B. This is clearly a loop.  But, in the image below, if a ridge enters on one side of an impression, recurves, and then passes an imaginary line drawn

Read More »

More about friction ridge science: Loops

Key Characteristics of loops Loops are a type of friction ridge pattern that constitute about 65% of all prints. A loop is a type of fingerprint pattern in which one or more of the ridges on either side of the impression, recurve, touch or pass in imaginary line drawn from

Read More »

More about Deltas

White spaces A white space must intervene between the delta and the first ridge count. If no such interval exists, the first ridge must be disregarded. Recurves A recurve must have no appendage abutting upon it at a right Angle between the shoulders and on the outside. If an appendage

Read More »

More about Deltas, Shoulders and Loops

There are a few other rules to remember about Deltas: The delta may not be located at a bifurcation which does not open toward the core When there is a choice between a bifurcation and another type of delta, the bifurcation is sleected When there are 2 or more possible

Read More »

Fingerprint Science – Deltas

The Delta is the point on a ridge at or in front of and nearest the center of the divergence of the type lines. It can be a bifurcation, an abrupt ending ridge, a dot, a short ridge a meeting of two ridges (convergence), or a point on the first

Read More »

Type Lines and Divergence

Type lines, which enclose fingerprint patterns, can be very short, or long. Another very important characteristic of type lines is that they sometimes contain bifurcations or divergencies. A bifurcation is the forking or dividing of one line into 2 or more branches, while a divergence is the spreading apart of

Read More »

Fingerprint Pattern Areas

Sometimes our clients have injured the tips of their fingers and express concern that this will affect their fingerprints. We explain to them that we are interested in specific pattern areas that do not include their fingertips. A pattern area is that part of a loop or whorl encompassing cores,

Read More »

Types of Fingeprint Patters

The three types of patterns are 1. Arch 2. Loop and 3. Whorl. These may be further divided: 1. Arch  Plain Tented 2. Loop Radial Ulnar 3. Whorl Plain Central pocket loop Double loop Accidental Whorl

Read More »

Recurving ridges, ridge counting

Recurving Ridges If a recurving ridge tends to terminate on the opposite side of the impression from which it entered, it’s usually a tented arch rather than a loop.  This is because a recurving ridge must touch or pass the imaginary line between the delta and core and at last

Read More »

More on classification of loops

Classifying Loops can be tricky. In the figure above, the ridge enters at A and exits at the same place, at B. This is clearly a loop.  But, in the image below, if a ridge enters on one side of an impression, recurves, and then passes an imaginary line drawn

Read More »

More about friction ridge science: Loops

Key Characteristics of loops Loops are a type of friction ridge pattern that constitute about 65% of all prints. A loop is a type of fingerprint pattern in which one or more of the ridges on either side of the impression, recurve, touch or pass in imaginary line drawn from

Read More »

More about Deltas

White spaces A white space must intervene between the delta and the first ridge count. If no such interval exists, the first ridge must be disregarded. Recurves A recurve must have no appendage abutting upon it at a right Angle between the shoulders and on the outside. If an appendage

Read More »

More about Deltas, Shoulders and Loops

There are a few other rules to remember about Deltas: The delta may not be located at a bifurcation which does not open toward the core When there is a choice between a bifurcation and another type of delta, the bifurcation is sleected When there are 2 or more possible

Read More »

Fingerprint Science – Deltas

The Delta is the point on a ridge at or in front of and nearest the center of the divergence of the type lines. It can be a bifurcation, an abrupt ending ridge, a dot, a short ridge a meeting of two ridges (convergence), or a point on the first

Read More »

Type Lines and Divergence

Type lines, which enclose fingerprint patterns, can be very short, or long. Another very important characteristic of type lines is that they sometimes contain bifurcations or divergencies. A bifurcation is the forking or dividing of one line into 2 or more branches, while a divergence is the spreading apart of

Read More »

Fingerprint Pattern Areas

Sometimes our clients have injured the tips of their fingers and express concern that this will affect their fingerprints. We explain to them that we are interested in specific pattern areas that do not include their fingertips. A pattern area is that part of a loop or whorl encompassing cores,

Read More »

Types of Fingeprint Patters

The three types of patterns are 1. Arch 2. Loop and 3. Whorl. These may be further divided: 1. Arch  Plain Tented 2. Loop Radial Ulnar 3. Whorl Plain Central pocket loop Double loop Accidental Whorl

Read More »
Categories