Hair Analysis in Forensics In the UK, forensic experts are increasingly turning to hair analysis to unlock vital clues about individuals involved in crimes. This method reveals unique biomarkers, providing insights that are critical for investigations. Solving crimes gets tough when DNA or fingerprints don’t match any records at the scene. Without these matches,…
Excessive drinking often plays a key role in fatal accidents. This makes measuring ethanol in post-mortem samples crucial in unnatural death cases. Studies in various countries find about 40-50% of unnatural deaths show high blood alcohol concentration (BAC) in post-mortem. Forensic labs often set the BAC cut-off at 0.01 g% using headspace gas chromatography with…
What is Raman Spectroscopy? Raman spectroscopy is an analytical technique that identifies molecular vibrations by scattering laser light off a material. It provides a molecular fingerprint, allowing for the identification and study of substances. Non-destructive and versatile, it’s used across various fields, from chemistry to forensic analysis, for both qualitative and quantitative assessments. The Study:…
Selecting the wrong sample collection method can severely impact DNA recovery. Research consistently emphasises the necessity of choosing a method tailored to the sample’s surface type. A study compared cotton swab versus cutting methods for more effective DNA sample collection from surfaces. It explored three different surfaces: cotton, paper, and cardboard. The study included various…
DNA evidence is crucial in criminal investigations. Investigators routinely collect biological material such as DNA at crime scenes and from items. They often collect touch or trace DNA samples from surfaces and objects believed to have been in contact. However, a person of interest might not leave any traces on these surfaces, for instance, if…
