How is a whorl pattern classified if an imaginary line drawn between the two deltas touches spiral ridges?

A fingerprint classified as a plain whorl is characterized by the arrangement of its ridges. In this particular classification, if you draw an imaginary line between the two deltas and it touches the spiral ridges, it indicates a specific configuration of the ridges that are generally symmetric and circular in nature. This means that the whorl pattern is one where the ridges flow in a circular manner, and the deltas are positioned in such a way that they create a clear pathway that touches the whorl ridges.

In the context of fingerprint analysis, recognizing the nuances of different whorl classifications is crucial for accurate identification and comparison. A plain whorl has easily recognizable features due to the symmetry and form of the ridges, differentiating it from other types like the central whorl, accidental whorl, or composite whorl, which have varying characteristics regarding the positioning of deltas or the complexity of ridge formations.

Understanding these classifications contributes to the overall effectiveness of forensic fingerprint analysis, making correct identification essential in criminal investigations or other forms of forensic work.