Answer:
Criminal investigations, a Practical textbook.
Explanation:
Hans Gross is considered as one of the founding fathers of criminal profiling and the creator of the field of criminality.
In 1893 he published his book "Criminal Investigation, a Practical Textbook". On it, he focused on human nature and the motives of a criminal. He studied a lot of criminals from murderers to thieves and analyzed their behavior.
I hope this answer helps you.