I don’t expect that’s true. I think there is a self-selection for certain personality types (authoritarianism, thrill seeking, military cosplay fantasies, etc.) that make cops more abusive overall than the general population. By what percentage I can’t say.

Edit: seems this is partially true for personality but this study shows a correlation with holding more right wing views. (college students who expected to pursue law enforcement careers) https://pubmed.ncbi.nlm.nih.gov/40768353/