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jjhall.bsky.social @jjhall.bsky.social · 14/10/2026

I wrote on the NYPD's Kobayashi Maru with ICE:

Reposted by @jjhall.bsky.social

Julia M. Rohrer @dingdingpeng.the100.ci · 04/10/2026

This is very good. “Over 2.2 million cancer deaths can be attributed to Costco; that’s more than 20% of all cancer deaths between 2000 and 2018.”

Ridiculous things you can “prove” caused cancer mortality

Everything causes cancer. Sounds cliché; maybe those California warning tags were right all along. But thanks to the methodology created by Alwadi et al., we can now prove that anything and everything causes cancer. Oh, sorry, that is too strong of an assertion. To use the authors’ words, since they have claimed their papers don’t prove causality, we can create an association between any physical landmark and cancer and, from that association, figure out how much cancer is attributable to that thing. Which is totally not the same as saying “that thing causes cancer.”

For instance, living near a private four-year university is associated with a 15-fold increase in cancer mortality when compared

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jjhall.bsky.social @jjhall.bsky.social · 21/04/2026

I did this for felony assaults in NYPD (copying LA Time piece) and we used it for a few years.

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jjhall.bsky.social @jjhall.bsky.social · 05/03/2026

Some of it is a function of auditing. Some of it requires further explanation. For example, transit revision rates diverged from the total city's rates in 2023, with the same auditing machinery in place.

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jjhall.bsky.social @jjhall.bsky.social · 05/03/2026

In fact, of 95 monthly releases looked at, total 7 major crime increased in all of them. And, revision rates have been increasing over time.

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jjhall.bsky.social @jjhall.bsky.social · 05/03/2026

I looked at 7+ years of NYPD press releases (and other data sources) to see how the numbers changed over time. The latest press release shows a 20% increased in the February 2025 transit crime numbers as of this year (compared to last year). www.vitalcitynyc.org/real-crime-n...

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Reposted by @jjhall.bsky.social

Jeff Asher @jeffasher.bsky.social · 06/02/2026

New York's Gun Involved Violence Elimination (GIVE) initiative reported its December data showing 20 shooting victims in all of December across 20 agencies (not NYPD) That's by far the fewest number of shooting victims recorded in a month since collection started in 2006.

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Reposted by @jjhall.bsky.social

Jeff Asher @jeffasher.bsky.social · 12/01/2026

New this week: I wrote about the dozen cities I found that had fewer murders in 2025 than in any of the last 50 years. A wide range of cities with incredible results. jasher.substack.com/p/the-cities...

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jjhall.bsky.social @jjhall.bsky.social · 04/01/2026

311 is a mess, yet it's being used as if it's not!

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jjhall.bsky.social @jjhall.bsky.social · 03/01/2026

Peak day: January 05, 2025 with 4,978 calls. Hasn't let up that much. Maybe we can't use this data to understand disorder in the city?

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jjhall.bsky.social @jjhall.bsky.social · 03/01/2026

One address accounted for over 26% of the NYPD's 311 calls in Jan 2025. They get 1.5+ million calls per year. Seems like a problem (not with the building).

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jjhall.bsky.social @jjhall.bsky.social · 28/12/2025

The “zone strategy” was Maddrey’s brainchild ( drawing explicitly on Operation Impact—an approach that shaped much of the department’s leadership during their formative years as young captains.)

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jjhall.bsky.social @jjhall.bsky.social · 27/12/2025

One of the more reckless policy decisions of the past 4 years.

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jjhall.bsky.social @jjhall.bsky.social · 13/12/2025

Sometimes you can't be "data-driven."

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jjhall.bsky.social @jjhall.bsky.social · 12/12/2025

Government plugging along in Excel! Have to be charitable. But yes, it is ugly. It happens (NYPD, 2024):

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jjhall.bsky.social @jjhall.bsky.social · 11/12/2025

doesn't cadet time give you an extra day?

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Reposted by @jjhall.bsky.social

Jerry Ratcliffe @jerryratcliffe.net · 02/01/2025

Good article in @vitalcitynyc.bsky.social by @katy-pugliese.bsky.social on local impacts of overdose prevention centers in NYC. She cites my work w/ @jjhall.bsky.social that found substantial property crime increases around one of the sites. Link in 2/2 (1/2) www.vitalcitynyc.org/articles/on-...

vitalcitynyc.org

Vital City | On Overdose Prevention Centers, Listen to Community Complaints

Policymakers would be wise to listen carefully to neighborhood residents who criticize the facilities.

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Reposted by @jjhall.bsky.social

Vital City @vitalcitynyc.bsky.social · 02/01/2025

Those who have taken to calling the criminal justice system the "criminal legal system" should read Greg Berman's new piece in Vital City. www.vitalcitynyc.org/articles/the...

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Reposted by @jjhall.bsky.social

Vital City @vitalcitynyc.bsky.social · 02/01/2025

Overdose prevention centers are saving lives (as documented in our drug issue vitalcitynyc.org/issues/issue-6). But are we listening closely enough to community concerns about them? In a new Vital City piece, @katy-pugliese.bsky.social puts her ear to the ground. www.vitalcitynyc.org/articles/on-...

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Reposted by @jjhall.bsky.social

Jerry Ratcliffe @jerryratcliffe.net · 22/11/2024

What is the ‘Hamsterdam principle”? And is it a reference to 'The Wire'? Read on...

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Reposted by @jjhall.bsky.social

Vital City @vitalcitynyc.bsky.social · 19/11/2024

This isn’t that complicated: Just because New York City is safer than it was decades ago doesn’t mean it is the safest it’s ever been. In fact, it’s gotten significantly less safe lately in some key respects. www.vitalcitynyc.org/articles/the...

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