Hair removal as a form of payment for challenges or dares lost involving the removal of all body hair. Inmates have their head shaved upon entry at certain prisons. Depilation is the removal of the part of the hair above the surface of the skin. The most common form of depilation is shaving or trimming. Another option is the use of chemical depilatories, which work by breaking the disulfide bonds that link the protein chains that give hair its strength. Epilation is the removal of the entire hair, including the part below the skin. Methods include waxing, sugaring, epilation devices, lasers, threading,
Hair analysis standard. A notable court case was "United States v. Medina, 749 F.Supp. 59 (E.D.N.Y.1990)". Microscopic hair analysis is the science of comparing several strands of hair under a microscope and attempting to deduce if the strands 'match'. It was accepted as a forensic science by the 1950s. Researchers often monitored more than a dozen attributes, including pigment distribution and scale patterns. This technique has been used in criminal investigations to try to tie hair found at a crime scene, or other location of note, and confirm if the hair matches that of a suspect. While a simple hair color match