Ernst Gennat - Biography

Biography

In his childhood he lived with his parents in a staff housing of the correctional facility in Berlin-Plötzensee. He graduated from high school on September 13, 1898 and entered the faculty of law of the Frederick William University on October 18, 1901. In the years in between one can assume that he served in the military (which he noted as profession on subscription to the university).

On July 12, 1905 he left the university without a graduation, shortly before the end of the semester on August 15. The reason was his career in the police - he had entered the police service in 1904 and passed the examination to criminal police officer on May 30, 1905. Two days later he started as detective assistant and he was promoted to criminal detective on August 1.

When Gennat entered the criminal police, there was no separate homicide division. It was just on August 25, 1902 that an on-call homicide service was created. That had not even changed when the Berlin police was reorganized on June 1, 1925. Only on the basis of Gennat's efforts a homicide squad was created. Only this event made it possible that he was promoted the lietenant inspector (at the age of 45) because he was skipped beforehand on the basis of his massive criticism on the conditions in the criminal department.

After creation of the Zentrale Mordinspektion (central homicide inspection) the division ran up to an enormous success under Gennat's leadership. In 1931 the homicide inspection was solving 108 of 114 crimes making for 94,7 percent (compared to 85 to 95 percent in today's homicide inspection work). Gennat himself worked on solving 298 homicide cases. His department was organized as one standing inspection team with two backup teams. The active team had one senior and on junior homicide inspector accompanied by 4 to 10 criminal police officers, a stenotypist and a dog handler. The backup teams had a senior and junior homicide inspector (bound in a so-called "Mordehe" / homicide marriage) plus 2 to 3 police officers and a stenotypist. The composition of the active team changed every four weeks to ensure that each officer gained enough experience.

Gennat reorganized much of the structure of how to investigate homicide. He developed most of the scheme that we know as profiling today. His work is documented in articles for the public like the 1930 publication "Die Düsseldorfer Sexualverbrechen" about Peter Kürten where he was the first to coin the term "Serienmörder" (serial killer).

During the Third Reich he was able to continue his work despite keeping a distance to the Nazi party. Based on his success he was even promoted to department director in 1934 and vice director of the Berlin police in 1935. He married criminal inspector Elfriede Dinger shortly before his death on August 20, 1939 (he had cancer but his sudden death makes a stroke more likely).