No Nuclear DNA in Rootless Hair: Myth or Fact?

Hair shafts, particularly rootless ones (telogen hair), are common exhibits found in crime scenes. They can be deposited either normally due to shedding or by force due to hair plucking. Based on the American Academy of Dermatology, the normal rate of shed hair per day is 50 to100 strands [1]. However due to the structure and the composition of hair, it was believed for decades that shed telogen hair has no nuclear DNA.