I know this is potentially a case of correlation doesn't equal causation, but if your goal is to argue against police budgets, these aren't the numbers to use.
> The real-dollar cost per crime reported has gone up more than 5x.
Yes, but that's a terrible way to look at something. You're not trying to reduce the cost per crime reported; you're trying to reduce the crime reported itself. That's going to take more money to accomplish, so the cost per crime going up is a good thing. It means you're getting good value for money.
EDIT: Doing some simple math, the cost per crime today is way less than the cost per crime back in 1993, according to your numbers. Drastically less.
(for the record, I don't know enough about this whole situation to have an informed opinion; my gut feeling is reducing the funding of your peacekeeping force by drastic amounts in a short time frame during a time of unrest is perhaps not wise)
"For example, the Bureau of Census reports that the average price of a new home in January 2000 was $194,800.4 According to the inflation calculator, that price in January 2020 should be $297,705.3 The same report places the average sale price for January 2020 at $402,400, more than 35% higher when accounting for inflation alone."