You need to read the fact check you sent me. It explains that the actual number is much lower.

In actual reality the police almost never investigate themselves.

In some departments, that's true. I am proposing that fixing that is a high priority. I think it's been reformed to a pretty substantial degree already, though -- most of these conversations about cops doing something fucked up, in the modern day, come alongside them getting charges because of the fucked up thing that they did.

That didn't used to be true, and more is needed, yes, but the old days where it would never happen are definitely not true anymore.