Applications of Analytical Chemistry in Forensic Science Introduction Analytical chemistry is an important science in the field of forensic evidence. It helps examine physical evidence and identify its chemical composition using advanced laboratory techniques. These analyses contribute to detecting unknown substances and providing scientific information that supports criminal investigations. Role of Analytical Chemistry in Forensic Evidence Analytical chemistry is used to detect drugs and poisons, analyze fire and explosive residues, examine inks and documents, and study glass, soil, and fibers. These analyses help compare samples and identify similarities and differences between them. Analytical Techniques Used Ultraviolet-visible spectroscopy (UV–Vis) is used to determine the concentrations of certain compounds, while Fourier-transform infrared spectroscopy (FTIR) helps identify functional groups in materials. Gas chromatography–mass spectrometry (GC–MS) is used to analyze drugs and volatile substances, whereas high-performance liquid chromatography (HPLC) is used to separate and analyze organic compounds. Importance of Forensic Chemical Analysis Forensic chemical analysis provides scientific results that help interpret physical evidence. The reliability of these results depends on proper evidence collection and preservation, instrument calibration, selecting appropriate analytical methods, and interpreting findings according to the available evidence. Conclusion Analytical chemistry is an essential part of forensic science because it provides modern techniques for detecting substances and analyzing physical evidence. Advances in laboratory instruments contribute to improving analytical accuracy and supporting scientific criminal investigations.