author
A legal scholar from early-20th-century Italy, he wrote on criminal psychology at a time when law, medicine, and social theory were colliding in new ways. His work gives a vivid glimpse of how crime and human behavior were being studied in that era.

by Michele Longo
Michele Longo was an Italian legal scholar active in the early 1900s. The front matter of Psicologia criminale identifies him as Avv. Michele Longo and a professor of criminal law and criminal procedure at the Royal University of Naples.
His best-known surviving work today appears to be Psicologia criminale, published in 1906 and now available through Project Gutenberg. In that book, he set out to organize criminal psychology into a more systematic field, linking questions of crime, responsibility, and human behavior.
The same volume lists a wide range of his earlier writings, including works on criminal law, premeditation, criminal conscience, and psychological studies tied to literature. That bibliography suggests a writer deeply interested in the meeting point between legal doctrine and the inner motives behind criminal acts.