Description chemistry in crimes The name of the substance and the functional groups included in its composition that make it a detective of crimes i want 1-Luminol and2- Iodine 3-and any matter chemical use at crime + i want the scientific principle I want to research these substances, iodine, luminol, and any substance that is used in crimes to detect crimes Each subject in which I want the name of the substance and what are the functional groups included in its composition that make it a factor in the detection of crimes in addition to the scientific principle