Robert Ritter

Robert Ritter (14 May 1901 – 15 April 1951) was a "racial scientist" doctor of psychology and medicine, with a background in child psychiatry and the biology of criminality. In Berlin in 1936, Ritter was appointed head of the Racial Hygiene and Demographic Biology Research Unit of Nazi Germany's Criminal Police, to establish the genealogical histories of the German "Gypsies", both Roma and Sinti. His work in classifying these populations of Germany aided the Nazi government in the systematic persecution of them, toward a goal of "racial purity".