Alphonse Bertillon, a file clerk and also the father of forensic science, had only a few days left to prove that his system of identifying criminals would revolutionize police work. With only a ruler, a tape measure, and calipers he took eleven physical measurements including: body height, length of the forearms, thickness of the head, etc. Each measurement was taken three different times, then averaged together to classify the criminal as small, medium, or large. Bertillon called this system, anthropometry, which had three assumptions: after 20-years-old the bone measurements do not change, the chance of two adults having the same value for two measurements was sixteen to one, and two adults having the same for all eleven measurements was four million, one hundred ninety one thousand, three hundred and four to one. By February 20, 1883, he and two of his assistants had processed over one thousand eight hundred criminals.
Edward Henry, a British police official, was on a train heading to Calcutta when he started thinking about fingerprints. The fingerprints can be seen clearly under a magnifying glass, but the pores along the ridges are what is not seen. These pores put out an oily perspiration, which is what leaves the fingerprints on almost anything a person …show more content…
DNA can be found everywhere in us, anything that escapes the body has DNA on it. Jeffreys had no interest in murder cases and crime, but two years later, the police were coming to him. Ten miles from Jeffreys’ laboratory, two 15-year-old girls were raped and strangled, the rapist/killer left no fingerprints, the only evidence the police had was the semen that was left on the girls’ clothing. The murders happened three years apart, but was assumed to be the same killer. Jeffreys tested the semen, and informed police that they only had to catch one killer, because the same man killed both
Edward Henry, a British police official, was on a train heading to Calcutta when he started thinking about fingerprints. The fingerprints can be seen clearly under a magnifying glass, but the pores along the ridges are what is not seen. These pores put out an oily perspiration, which is what leaves the fingerprints on almost anything a person …show more content…
DNA can be found everywhere in us, anything that escapes the body has DNA on it. Jeffreys had no interest in murder cases and crime, but two years later, the police were coming to him. Ten miles from Jeffreys’ laboratory, two 15-year-old girls were raped and strangled, the rapist/killer left no fingerprints, the only evidence the police had was the semen that was left on the girls’ clothing. The murders happened three years apart, but was assumed to be the same killer. Jeffreys tested the semen, and informed police that they only had to catch one killer, because the same man killed both