Police departments tend to address operational challenges with training approaches, and implicit bias in policing is no exception. However, psychological scientists have found that implicit biases are very difficult to reduce in any lasting, meaningful way. Because they are difficult to change, and nearly impossible for the decision-maker to recognize, training to raise awareness or teach corrective strategies is unlikely to succeed. Recent empirical assessments of implicit bias trainings have shown, at best, no effect on racial disparities in officers' actions in the field. In the absence of effective training, a promising near-term approach for reducing racial disparities in policing is to reduce the frequency of actions most vulnerable to the influence of bias. Specifically, actions that allow relatively high discretion are most likely to be subject to bias-driven errors. Several cases across different policing domains reveal that when discretion is constrained in stop-and-search decisions, the impact of racial bias on searches markedly declines.