Noted: But Patricia G. Devine, a professor of psychology at the University of Wisconsin who runs a research laboratory on prejudice, said she was troubled by the spread of such training in the absence of probing, objective research. She said more study of officers’ unintentional biases is necessary to evaluate how training can impact their behaviors. Additional data is needed, she said, to determine if officers retain what they are taught and if civilians are benefiting from fairer policing.