Both neutron activation analysis (NAA) and atomic absorption spectroscopy (AAS) are used to estimate the concentration of arsenic in biological samples such as hair, nails, and bone. These techniques are highly sensitive and can detect trace amounts of arsenic. A. Neutron Activation Analysis (NAA) Neutron Activation Analysis (NAA): NAA is a nuclear process used for determining […]
Forensic Hair Sample Analysis using NAA and AAS Read More »
The Video Spectral Comparator (VSC) is a UV-Vis-IR imaging spectral device designed for forensic examination and authentication of questioned documents. It was developed by Foster and Freeman. A basic VSC unit consists of a high-sensitivity camera, different light sources, a software/viewing interface, and a positioning stage. The built-in multiple spectrum sources can reveal hidden characteristics
Video Spectral Comparator (VSC): Principle, Parts, Uses, Advantages and Disadvantages Read More »
Electrostatic Detection Apparatus (ESDA) is an electrostatic detection device (EDD) specifically made by Foster and Freeman Ltd. to reveal indented writings on a paper surface. With time, ESDA become synonymous with EEDs for detecting indented writing or marks on forensic questioned documents. Moreover, it offers a non-destructive nature of detecting indentation because it operates on
You have to have accurate measuring tools, such as rulers, gauges, and grids for precise measurements in the forensic application. But… Number of Options!! Thus, you should know what to choose. Honestly, I recently made a wrong purchase— a digital product. I just lean down and make a purchase, compulsively. That ended in a product
Forensic Rulers and Scales: Types, Characteristics, and Uses Read More »
