The Henry Classification System: Still Named After the Man Who Plagiarised It. British Plagiarism, Theft and Dishonesty: How Edward Henry Stole the Fingerprint System and Was Rewarded for It. In the 1890s the Bengal Police needed a workable method to file and search large numbers of fingerprints. Edward Henry, the British Inspector-General, did not invent the solution. He asked Presidency College for a strong mathematics student and assigned the problem to the officers who arrived. Qazi Azizul Haque created the mathematical core. He built a formula that sorted every set of ten fingerprints into one of 1,024 distinct categories, arranged as a 32 by 32 grid of pigeonholes. The system rested on the primary division between whorls and loops or arches, with further numerical values assigned according to which fingers carried which patterns. By 1897 thousands of print sets were already filed under this method. A search that previously took about an hour under the old anthropometric system could now be completed in roughly five minutes. Without Haque’s formula there was no practical way to retrieve a matching record from a large collection. Hem Chandra Bose supplied the technical methods that made the system operational. He developed the further subclassifications that refined the primary sorting, created ways of handling single-digit impressions rather than full sets, and later produced a telegraphic code so fingerprint data could be sent between police stations. His work turned a mathematical filing system into something police forces could actually use day to day. Remove either contribution and the method collapses. Henry claimed the opposite. He said the classification scheme had come to him in a sudden flash during a train journey and that he had scribbled the idea on his shirt cuff. In 1900 a British committee asked him whether the system was his own invention. He answered yes. He published the monograph Classification and Uses of Fingerprints under his name alone, with no acknowledgement of Haque’s formula or Bose’s methods. The system then spread internationally under the name Henry Classification System. Henry was rewarded for the claim. He received the Companion of the Star of India, was later knighted, awarded the King’s Police Medal, created a baronet, and rose to become Commissioner of the Metropolitan Police. The system that carried only his name helped secure those honours and his advancement. Only in the 1920s, when the Government of India reviewed the matter for official recognition of the two officers, did the administrative record state that Haque “actually himself devised the method of classification which is in universal use.” Both men later received titles and payments. None of Henry’s awards were withdrawn and the system kept his name. If a supervisor today took a subordinate’s formula and technical methods, published them as his own invention, and accepted sole credit, titles and a namesake system, it would be called plagiarism. That is what the record shows happened here. Haque created the mathematics. Bose made the system usable. Henry took the credit and the rewards.