@lordalveric you're the one who's claiming no police = more crime. The tweet you're presenting doesn't link to any study.
Present YOUR studies.

@proto_azure Yeah, OK, when I get the chance. Just that I grew up in Philadelphia. This is anecdotal to the max, but take it for what it's worth.

When Mayor Frank Rizzo ran Philly, he increased the police force and knocked crime down.

When Mayor Giuliani ran NYC, crime also went down.

It's not just having more police, but what you do with them that counts.

Now, I have seen parts of Philly with little to no police coverage, and the crime in those parts are pretty high. I have heard shoot-outs there with my own ears.

Now, in doing a proper analysis of say, Philly, one would have to get pretty detailed, neighbourhood by neighbourhood. Because the crime rates in one neighbourhood will overwhelm the stats unless you norm for the police presence -- or lack of the same -- there.

But let me throw this back at you. Would you feel comfortable where you live if there were no police? Why?

Personally, I would argue for more respnsible gun ownership over more police, and John Lott already wrote a book about that, complete with the stats.