Discuss (d) Physical fit

The importance: the frequent transfer (the Locard's classic); the survival (the hair's durability — the decades-old evidence); the information (the person's-and-species' narrowing). The types: the human-vs-animal (the cuticle's-and-medulla's structure); the body's sites (the head, the pubic — the offence's locations); the growth's phases; the root's presence (the torn-vs-shed — the forced- removal's inference; the root's DNA — the nuclear source) vs the shaft (the mtDNA only). Theexamination: the microscopy (the colour, the diameter, the pigment, the medulla's index — the class comparison); the DNA (the root's nuclear; the shaft's mitochondrial); the conclusion's honesty (the hair's class-character — the microscopic match never the individualisation; the FBI's later-review lessons).