Lombroso was a doctor who believed that criminals were not created, but rather born that way. He insisted that these individuals he stereotyped could be easily picked from a crowd from identifying features such as asymmetrical/enlarged facial features, sloping foreheads and excessively long arms. He believed there were also non physical signs such as a lack of sensitivity to pain. According to his theories, women were less likely to be criminals due to the fact they were inferior to men.
With all of his findings, Lombroso also believed there to be one exception to his constructed stereotype. He believed that if a crime was committed out of passion, the person themselves did not possess criminal tendencies, and rather external factors drove their actions.
Lombroso is one of many people who have influenced the masses into believing a stereotypes affecting the way a certain group of people can be portrayed.