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Sir Edward Richard Henry. By: Kateryna Dyakiv and Mario Rivera. Background History. Henry was born in London in 1850 and attended St. Edmund ’ s College.
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Sir Edward Richard Henry By: Kateryna Dyakiv and Mario Rivera
Background History • Henry was born in London in 1850 and attended St. Edmund’s College. • He earned a degree from University College, London, in 1869 and a few years later began studying law at the Society Law of the Middle Temple
The Beginning • In 1873, Henry passed the examinations to join the civil service in India. • In India he first became involved in matters related to criminal identification and fingerprinting.
Henry Classification System • Published in the late 19th century • Efficient method for classifying fingerprints of a large group of subjects • Organizes fingerprints by physiological characteristics • System is based on the appearance of whorls • Must contain at least 2 deltas • 4 types: plain, central pocket, double loop, accidental
How It Works.. • All 10 fingers are paired (one in the numerator & one in the denominator): • Each pair of fingers is given a value if a whorl pattern is found • 1st: 16, 2nd: 8, 3rd: 4, 4th: 2, & 5th: 1 • No other pattern receives points • In order for no fraction to end up with 0/0, we add 1 to the total.
Example If a whorl was found only on the right index finger and the right middle finger, what would be the final fraction?
Bibliography • Classification of fingerprints. (n.d.). The crime lab. Retrieved September 4, 2012, from shs.westport.k12.ct.us/forensics/04-fingerprints/classification.htm • Fingerprint patterns. (n.d.). Odec - online digital education connection. Retrieved September 4, 2012, from http://www.odec.ca/projects/2004/fren4j0/public_html/fingerprint_patterns.htm • Henry classification system. (n.d.). Somerset county public schools. Retrieved September 4, 2012, from http://www.somerset.k12.md.us/JMT/LAB%20fp2%20inked%20and%20henry.htm • Manar, Elizabeth. (2006). Henry, Edward Richard. In enotes. Retrieved September 4, 2012, from http://www.enotes.com/henry-edward-richard-reference/henry-edward-richard