The collection and analysis of samples are vital components of forensic toxicology. Samples can be obtained from blood, urine, hair, saliva, and other bodily fluids or tissues. The choice of sample type depends on the case specifics and the substances being tested for. Analytical techniques such as Gas Chromatography, Mass Spectrometry, and Liquid Chromatography are commonly used to detect and quantify toxins, ensuring precise and reliable results.