Forensic light source is a vital requirement of any forensic laboratory or at a crime scene where with the help of these solutions, experts can detect the evidence that may not be generally visible to the eyes.
The main application of using forensic light sources is listed as following:
Detection of Latent Fingerprints
This is the most popular application for which forensic light source is used. The high-performance light source enables in improving the detection of latent fingerprints. Fingerprints that are made of oil and sweat on the skin’s surface are known as latent fingerprints and are invisible to the naked eye.
The professional forensic light source uses fluorescent enhanced technique that compliments a light source greatly and therefore, increases the surface types from which latent fingerprints can be identified. Latent fingerprints over tough-to-detect surfaces such as paper products, concrete wall, heavily grained wood, rigid duct tape, etc. can be difficult to identify and collect.
The use of a forensic light source has been successfully implied for revealing such fingerprints. The wavelength of the forensic light source is required to be considered for processing the fingerprint evidence on different types of surfaces.
Body Fluids
Forensic light sources are also used for locating varied body fluids such as saliva, genital fluids, etc that are naturally fluorescent. The right forensic source light delivers a unique method to identify them at a crime scene.
The dried-out body fluids will glow under the light source illumination; however, it is mostly preferred to choose light sources with longer wavelengths as they are able to eliminate the background interference and make the detection results more prominent.
Other than these, forensic light source is also used for detection of hair and fibres, bruises, gunshot residues, human bone fragments, shoe prints and other applications. Most crime investigators rely on high-performance light sources that are of extreme importance to get better results in evidence identification at a crime scene or event.