Introduction to the course, the role of the forensic analytical chemist. The sample and its collection, manipulation for analysis. The biological matrices: blood, plasma, saliva, serum and urine. Unconventional matrices: hair, nails, hair, sweat. Solid and liquid phase micro-extraction techniques such as solid-phase micro-extraction (SPME), packed adsorbent micro-extraction (MEPS), solid-phase extraction (SPE) liquid dispersive liquid micro-extraction (DLLME), dried blood spot (DBS). Enzymatic treatment of urine samples for the release of analytes. Spot-test for the detection of blood traces on different surfaces through the use of Luminol. Equipment necessary for their detection. Dry blood drop analysis through online and offline DBS. The role of hematocrit in sampling with DBS. Seminal plasma: methods of recognition of biological material on different matrices. Doping: analysis techniques of the main analytes reported by WADA. Masking and screenenin techniques, confirmation techniques for the main doping agents. Drugs of abuse and their determination. The cathinones. The impressions: typology and detection on different surfaces with reactive details. The inks. The technical consultant in the processes. The compilation of reports in the sampling phase. Food fraud. Optical analysis techniques (spectrophotometric and fluorimetric). Separation techniques, high efficiency liquid chromatography (HPLC) and ultra high efficiency (UHPLC) single and coupled to mass spectrometry (UHPLC-MS).