Christine Fernando And Marion Renault February 11, 2021 - 1:43 PM CHICAGO - In the last decade, high-profile police killings â including George Floyd in 2020 â have shaken the nation and led to widespread protests and calls for reform, including hiring more nonwhite and female officers. But there was little research to back that up. Now, a new study published Thursday in the journal Science, suggests that diversity in law enforcement can indeed lead to improvements in how police treat people of colour. âItâs a system that very clearly needs refo...