Forensic Light Source Applications Wavelengths And Uses

In addition to handheld crime lites foster freeman manufactures two models multi wavelength laboratory light source.

Forensic light source applications wavelengths and uses.

An even more detailed use of infrared technology in forensics is infrared spectroscopy. Forensic light source applications. Cyan green light help with fingerprints. Many body fluids organic materials and fibers will fluoresce under the forensic light source and other materials such as blood gunshot residue and some inks will absorb blue light to appear dark under the light source.

Usually in forensic sciences ultraviolet uv light is used to induce fluorescence on many samples to identify and evaluate proofs ex. To eliminate the fluorescence of the cleansers or detergents use a forensic light source tuned above 440nm. Fibers gunshot residue biologic fluids pigments inks and fingerprints and different wavelength are used to better enhance the material characteristics. Each chemical bond within a molecule vibrates at a frequency that is unique to that bond much like a fingerprint.

It then filters down the light into individual color bands wavelengths that. Uv blue lights locate bodily fluids trace evidence. While the crime lite 8x4 is ideal for the visualization and enhancement of fingerprints the crime lite ml2 has applications including the detection of body fluids and marking up of evidence. In simple terms infrared spectroscopy is the use of infrared light to analyze the chemical bonds within molecules.

Horiba manufactures forensic instrumentation to collect and analyze evidence during the course of an investigation. Applications detection of body fluids with an alternate light source. The use of fluorescent enhancement processes that compliment a light source greatly increases the types of surfaces from which a latent fingerprint can be detected. Foxfury portable forensic light sources and lasers help visualize evidence and can be used in the field or in the lab.

Wavelengths and uses the who what where and when of wavelengths 2 a forensic light source is made up of a powerful lamp containing the ultra violet visible and infrared components of light. These substances are often not observable to the naked eye and especially if the surface was wiped down or cleaned. The proper colored goggle will block the specific wavelength of light emitted by the forensic or alternate light source allowing only the longer wavelength fluorescence to pass. Forensic laboratory light sources.