Imprint of the Raj brings out yet one more achievement of that era. Till the end of the 19th century, administrators everywhere faced a problem of identification—how to know for sure that someone is a habitual criminal? How to hold a man to his pledged agreement? A Frenchman, Bertillon, thought up a measurement system; criminals were measured in nine different ways and elaborate cards were prepared. The jewel of his morphological system: elaborate measurements of the ears. Lakhs of cards were prepared and stacked. But how to classify them, and also consult quickly for any use. Inspector Cluseaue himself could not have done it. Nobody in Europe could solve this problem.