Isabel Ostrander,
The Twenty-Six Clues — Chapter 1
(1919)
“ THE one thing you psychometric enthusiasts overlook in claiming perfection for your method of solving crime is the human equation. Your machines for recording the emotions of the suspect cannot lie, it is true, but neither can they tell the truth. Granted that they are perfect in themselves, they are operated by the most faulty machine created since the beginning of time—the human being. You, Mr. Terhune, are unquestionably the greatest living master of scientific criminal investigation, but do the purely mechanical implements of your trade invariably probe to the very soul of the crime? ”
