Analysis of genetic material extracted from strands originating from the scalp allows for the determination of an individual’s unique genetic code. This process, while generally less preferred, offers an alternative means of acquiring biological samples when more conventional methods are not feasible. A common scenario is when other sources, such as blood or saliva, are unavailable or compromised.
The utilization of this biological material for identification purposes, paternity testing, or ancestral tracing holds significance in forensic investigations, historical research, and genealogy. Historically, the success rate was lower than with other sample types due to limited quantities of usable genetic material and potential degradation. Advances in DNA extraction and amplification technologies have improved the viability and accuracy of this method.