Introduction to Vomitus and Its Forensic Analysis

Vomiting is a gastrointestinal response to poisoning or drug overdose and also it can occur due to trauma faced in violent assault like in case of strangulation, sexual assault, etc. Thus, the identification of gastric fluid in a crime scene can help in framing the crime scene and can corroborate to a criminal act. Vomitus contains gastric fluid which contains HCl, mucus, pepsinogen, and various gastric-specific protein biomarkers like MUC5AC, GAST, etc. along with epithelial cells and food residue. The detection of which in a suspected stain will help to identify vomitus.