Fingerprint detection: current capabilities

The detection and identification of latent fingermarks remains one of the best forensic techniques for the investigation of crime. The value of fingerprint evidence for a particular investigation relies on the ability of the fingerprint technician to detect, enhance, and record the latent fingermarks that are left behind when a smooth surface is handled with the bare hands. There is a wide range of optical, physical, and chemical detection techniques available that can be employed to detect and enhance fingermarks on various surfaces. The purpose of this article is to provide an overview of the common fingerprint detection methods that are employed in routine casework. The information provided includes the general principle behind each technique, how the technique is applied, and how methods can be employed in sequence to maximise detection effectiveness