Papillary Lines

A papillary line (or ridge) is a unique pattern on the surface of the skin that appears as a result of the development of the skin and allows a person to be identified by comparing fingerprints. Belongs to the group of folded skin structures. The term "papillary fold" is applied to structures that have only one ridge of skin from one ridge to another, while the terms "apocrine fold", "acne ridge", "uncinate ridge" are used for more complex forms.

Papillary lines form approximately 6 weeks after birth and remain unchanged throughout a person's life. The flow of blood and lymph passing through the skin carries the hair, giving the skin the appearance of many ridges.

The two basic principles of fingerprint identification are presented as follows: - Each person has his own unique pattern of papillary lines; - Unlike other parts of the human body, such patterns are not subject to significant changes under the influence of age, injury, etc.

Currently, papillary patterns are used as samples in three main procedures for the purpose of identifying a person:

1. Biometric security measures - This is a special combination of biological security measures such as fingerprints, voice, face. 2. Identification of missing persons or disaster victims - These are processes that will determine the identity of people in the event of an accident. They most often use fingerprints to identify the dead. However, height and weight are also important and should never be overlooked. 3. Completing medical records. Early examination of the youngest child - Doctors often refer their young patients for fingerprint examinations because in some cases having fingerprint samples will be especially helpful.

The uniqueness of their fingerprint samples is very important as they can be used using various technologies like: * Tablet for fingerprint capture * Fingerprints made using appropriate applications on smartphones or tablets (using as a fingertip). * Regular pens or markers used to copy prints. In such cases, paint is used and the assistance of a specialist (for example, a lawyer) may be required.