Whole days are spent watching dash- and body-worn-cam videos of officers getting ambushed, ostensibly to teach ways to mitigate harm, but in practice it just has the effect of deepening the chasm between "us" officers and "them" citizens by instilling a deep sense of fear bordering on what may be considered an anticipatory PTSD. I mean, talk about a garbage biased dataset...
(To any pedants in the audience, the trauma occurs when watching the videos, so "post-traumatic" is appropriate here :))
Here's an account from an ex-cop that made a splash following George Floyd's murder, but there are many, many more articles exactly like this scattered across the internet: https://medium.com/@OfcrACab/confessions-of-a-former-bastard...