So I finally got to reading your comment and the DV link you included above. Thank you. Always up for refining what I think I know about stuff.
Interesting article, and as to where I got my info on the 40% DV rate for cops, I'm pretty sure it was one of the articles listed within - maybe The Atlantic, which has a pretty decent reliability rating. I kick out an article a week on my blog and I do the best I can to source references. I rely a lot on Media Bias Fact Check and also checking About links to see where more unknown sources come from. I aim for sources that are rated as highly factual or mostly factual and I don't bother as much about bias (although bias and factualism tend to travel down either side of the spectrum the same way...the farther you go in one direction factualism goes down, and bias goes up).
So, learning that the 40% stat might not be any good anymore is valuable to know and I thank you. I'd just remind you that, as I think you mentioned already, we almost can't trust any previously reliable info source anymore. Sci American & Nature have been 'wokenized' and buy into trans ideology; so have the AMA, the American Academy of Pediatrics, the American Psychological Association, and other so called 'experts' and 'scientists' to the point where they are no longer anywhere as reliable as they should be. Throw in deepfake videos & photos and chaos has already begun to reing.
I've read "Hate Crime Hoaxes" by a black sociologist whose name escapes me and I was surprised at how many notorious 'hate crimes' were often anything but. And I read "The Book of Matthew" a few years ago, still have it, which casts quite a different light on America's most famous 'homophobic' hate crime.
So no, I didn't take it at face value, I did some fact-checking, but probably not as much as I'd like to if I have more time.
I've saved the article you've referenced as it will no doubt come in handy in the future.