Making it more suitable for genetic markers to be used when processing evidence in the lab. Fingerprint examiners must check the results numerous times to prevent false convictions and to maintain the integrity of the science (Bertino 140). Growth of DNA technology has impacted microscopic hair comparison (Dale and Becker 80). Hair is tested macroscopically, in which the length, colour and curliness are examined; and microscopically, in which the pattern of the medulla, pigmentation of cortex and even the type of scales on the cuticles are examined (Bertino 56). A comparison microscope allows for side-by-side comparison of samples. Today, hair can be analyzed by neutron activation analysis, DNA fingerprinting methods (Bertino 51), and many types of microscopes. A strand of hair is place in a nuclear reactor and bombarded with high energy neutrons. In which it detects up to 14 different elements on a single two-centimeter long hair shaft. Ultimately, the probability of any two persons having the same concentration of nine different elements is one in millions (Bertino 57). Therefore, hair remains an error-free indicator that is frequently used in today’s
Making it more suitable for genetic markers to be used when processing evidence in the lab. Fingerprint examiners must check the results numerous times to prevent false convictions and to maintain the integrity of the science (Bertino 140). Growth of DNA technology has impacted microscopic hair comparison (Dale and Becker 80). Hair is tested macroscopically, in which the length, colour and curliness are examined; and microscopically, in which the pattern of the medulla, pigmentation of cortex and even the type of scales on the cuticles are examined (Bertino 56). A comparison microscope allows for side-by-side comparison of samples. Today, hair can be analyzed by neutron activation analysis, DNA fingerprinting methods (Bertino 51), and many types of microscopes. A strand of hair is place in a nuclear reactor and bombarded with high energy neutrons. In which it detects up to 14 different elements on a single two-centimeter long hair shaft. Ultimately, the probability of any two persons having the same concentration of nine different elements is one in millions (Bertino 57). Therefore, hair remains an error-free indicator that is frequently used in today’s