MacArthur Justice Center vs ShotSpotter Commissioned Report

By IPVM, Published Aug 13, 2021, 10:22am EDT

Amidst bad press, ShotSpotter commissioned Edgeworth Analytics to review Northwestern Law School’s MacArthur Justice Center (MJC) report that ShotSpotter “drains millions of dollars of taxpayer resources every year without any clear benefits to public safety.”

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IPVM spoke with MJC and Edgeworth to report both sides' claims and analyze who is correct.

Executive *******

************** ******* ****** (***) reported ** ******* **.*% ** **** 2019 - ***** **** Chicago *********** ****** **** “unfounded”, *********** ************ ********* Analytics, *********** ** **** **** that *** *** ****** was “**********”*** **** “***** ** client *******” *********** *** “highly ******** ** ********* outdoor ********”.

***** **** ***** ***** on *** **** **** 88.7% ** ******* ****** responses ** ****** ***** no ********* ********* * gun, ********* **** *** number ** “***********” *** that ***’* *********** ***** on *** ************ *** not ********* ** ****. But, ******* ******* *********** “highly ********," ********* ***** not ****** * *** question ***** *** *********** records ******** ****** *** admitted **** ****** ***** analysis ** ******** ******** was * "**********". (** percent ** ***********'* **** revenue **** **** ** law *********** ********, **** universities, ********* ********, *** others ****** ** *** rest.)

********* **** **** **** that *********** *********** ** Chicago **** ****** *** to ****** ***** *****, not ****** *****. *** told **** **** *********** deployments **** ** **** reported ********, ********** *** crime ********** ** * neighborhood.

ShotSpotter *********** “***********” ******

***** *** ********* *** report, *********** ************ ********* Analytics ** ******* ** “independent ********” ** ********* *** ***** ***********’* accuracy ******.

Edgeworth *** *** **** ***********’* **** ***** ********* **********

**** ******** **** ****, Edgeworth *** *** **** how *********** ******* ********-******** errors ** **** ******** in *** ************* *******, a *** ***** ******* ShotSpotter **** ********-******** ****** to ********* ********:

* ***'* **** ******* how **** ***** *******, that ***** ****** ** their *********** **** *** client *** ***** ************* of **** ********.

*********** ***** ******** **** that ********-******** (****** *** campus ********) ****** *** recorded ** ****** ******* mentioning *************:

** * ******** ******* a ***** ********, ** treat *** ****** ** as * ***** ********. It ** ******** ******** for *** ******* ** notify ** ** ***** positives *** ***** *********, and ** ********* *** customers ** ******* **** feedback ** **** *********** can ******** ** ******* our **********.

Customer ******** **. **** ** ********

*** **** **** *** only *** ** ****** ShotSpotter’s ******** ** *********** testing. (****, *********** ******** IPVM’s ******* ** **** their ********):

*** **** *** ** get ** **** ******** [ShotSpotter’s ********] ** ** do ****** ********** ******* [...] ***** **** **** the ****** ** * blind ****** ******* ****** that *** ******* ** gunfire **** *** ****** [...] ** ******** *** system […]. **** *** see *** ********** *** system ***** *** ** alert ** ******** ** those ***** ** ******—****** like ************ ** ***** tires ** ************ ******. [...] ****'* *** *** test ********—** ******** ******* the ****** ******* ***** samples, ***** ************* ***** ShotSpotter *** *** ********* don't **** ****'** ***** tested. ****'* **** ** demand **** ***** ****** investigative *****. *** *******, with *** ********, ** demand ***** ******* **** the *** *** **** verified *** *** ********** technician *** **** ******.

********* ********* ********* ** MJC’s **** **** *** only *** ** ****** ShotSpotter’s ******** *** ** doing * ****, ****** that *** *** **** they ***:

**, * ***** [...] that's * ********** ********. Yeah, **** *** * science ********. *** ** don't **** ** ****'* do * ********** *****.

********* ***** **** **** they ******* **** *** a ********** *****, *** one ***** ** ******** feedback:

********* *** *** ** a ********** ***** ** ShotSpotter’s ******** **********, *** it *** ** * scientific ***** ** ***********’* accuracy ***** ** ******** feedback.

*** **** **** ***** is * “*******” **** this ******:

*** ******* **** **** is *******. ****** *********** don't ****** *** *** errors, *** ******** ****'** not ** * ******** to ****** ***** *********. When * ****** ******* arrives ** *** ***** and *****'* **** ********, they **** ** **** what *** ****** ** the ***** ***. **** are ****** ** ****** it's ******* ******* ****’** been *******--*** *********** *** told **** **** *** over--that *********** ** ********* accurate *** *********. ** why ***** **** **** in ** ***** ****** just ******* **** ******* on ***** *** ***** nothing?

********* ****** ***** *** limitations ** **** ******, but ******** **** ** is “************** *****”:

******** ******** ** * scientifically ***** *** ** evaluate ***** ********. *** obviously, * ********** [** the *****] ** **** it’s [...] ***** ** customer ********

***** **** *** ** a **** *** *** ShotSpotter ** ****** ********* are ***** **** ***** solution, ** ** *** a ******** ****** ** measuring ********.

“Dead-End ******” **. ****** ** ********

*** *** ********* ***** that ** **** **** - ***** **** ** Chicago **.*% ** *********** alerts ********* “*** *** result ** ****** ********* any **** ** ******** involving * ***”, ********* said *** ****** ** “meaningless” *** **** ***’* conclusions ***** ** *** significance *** *** ********* by ****.

*** **** **** **** regardless ** ** * gun *** ***** ** not, ***** ****** *** a ***** ** ****** resources *** *********** *********:

** **** **** ‘****-*** alerts’ ** ‘********* ******’ because ****** ****** ** the ***** *** **** nothing. ** ***** ** that ************, ***** ******** what ****** ******** *** up ******* ** *** scene. *** ***** ** that * ***** *** of * ** *******, a *********** ***** ***** police ** ****** ** evidence ** * *** incident ** *** *****.

***** **’* **** **** police ***’* **** ** advance **** ****’** ***** to **** ****** **** get ** *** ***** of * *********** *****, the **** **** **** 88.7% ** *** **** police *** ****** ** find ** ***-******* ********.A *** ******** ** *******—***** *** **** **** ** ****-****—**’* ***** ******* ****** *** ** ******** ** *********** ******, ************ **** ***** *** *** ****-********* *********** **** ****** ** **** ** ******* ********** **** *** ******, *** ************ **** these ****** *** ***** high-priority *** ******** ***** things **** ******** ***** be ***** **** ***** time. [******** *****]

***** ********* **** **** the ******* ****** ****** does *** ******* ********** findings *** **************, *** that *** ****** ****** have **** ******** ** case ***** *** * “gunshot ******” ** “***********”:

* ***** ********. *** characterization [** ***********] ** dead-end ******** **** *** police ****** *** **** been ********. [...] ** there *** ** **** gunfire, * ***** ** would **** ***** *** the ****** ** ** deployed ** *** ***'* know ***** ** **** whether ****'** ***** ** find * ******* ******, gunshot *********** ** ********* else ** *** *****. And ** *** **** that *** ****** ********* and ***** ******* *****'* tell *** ******** ***** whether **** ********** *** warranted. ** **** ***** you **** ******* **** found.

********* ***** *** ********* points, **** ** ******* police ****** ** *** a **** ****** ** accuracy *** **** ****** a ******* ****** ** finding * *********** *** be ***** **** ***** deployments. *******, **** ** not ***** ** *** fact **** ***** *********** are ************ ********* *** innocent ********* *** ********* for *** *********** ******* the ****** ****** * shooter. ********* **** *** not ******* *** ***** ShotSpotter ****** ***** * perpetrator ** ****** *** found *** *** **** generate * *** ****, or ********* ****** ** false ******.

Racial ***** ** **** ***** *************

********* ********* ** ***’* note **** “*********** ** deployed ************** ** ***** and ****** ************* ** Chicago” ** ******* **** ShotSpotter ** ******** “** the ******* ****** ********* where ******* ***** ** disproportionately *******”. ********* ************ noted **** “*** ******** **** ******** *** ** ****** districts ***** *********** ** deployed *** *** ** police ********* **** *** highest ****** ** ********* between **** *** ****.”

IPVM Image

*** **** **** **** did *** **** * “complete ********” ** ****, but **** ******* *** not **** * ********* explaining *** **** ******** ShotSpotter ***** **** ***, and **** ***********’* ********** would **** ** ********* in ******** ******** ** the ************* ** ** deployed:

**'** ***** ******* ** that. *********** ****** **** it's *** **** ** Chicago’s ******** ***** **** areas ** *****, *** I *****'* **** ******** from *** **** ** Chicago ****** ********** *** it **** ***** *********. I ***’* ***** ***********’* paid ****** ** ***** on ************** ** *** city ***** *** **** make ***** ******** *********. What * *** ***, and **’* **** ****, is **** *********** ** only ******** ** *** South *** *** **** Side, ***** *** ************** Black *** *****. ******* aspect ** *** ***** that **** ***'* ****** engage **** ** **** when *********** ** ******** in *************, **'* ********** statistics ***** ******** ******* only ** ***** *************. And ******* *****'* ** reason ** ******* **** ShotSpotter’s ***** ******** **** is ************ ****, *** system ** ********* *** number ** ******** ******** in ***** ********* ** opposed ** *********. **** can **** *** *** that ****** ****** ***** resources: ****** **** ***** about *** ******** ****** of ******** ** *********** neighborhoods **** **** **** higher **** ***** *************, but ****'* **** ******* ShotSpotter ** ********* *****. That *** **** *** infect ******** ****** ** other ******* ** ********.

Unconvincing ********

*** ********* ****** **** not ************ ******* ** MJC ********** ** ***********’* method *** *********** ******** or *** ********* **** in **** **** - April **** ** ******* 88.7% ** *********** ****** “did *** ****** ** police ********* *** **** of ******** ********* * gun.” ********* **** ***********’* metrics *** *** *** know *** ** ***********’* error ********* **********, ****** more *********** ** ************** ******** ******.

[******'* ****: ** ****** Edgeworth's ***** **** *********, the ********* ******** *** added ** **** *******:********* **** *** ****** is “***********” *** **** MJC’s *********** ***** ** its ************ *** *** supported ** ****.]

Comments (1)

********* ****** ****.

*********: "******** ******** ** a ************** ***** *** to ******** ***** ********."

**** ***** *** ******** bullshit. **** ***'* **** spin...this ** *** ******** ** *****.

******** ******** (*** ************ those ********* *** **** the ******** ********** **** Shotspotter ****** ** ***** website **** **** ** justify ***** ************ ** this **********) *** ************** '************** *****' *** to ******** ******** ** all.

Agree: 1
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Informative: 1
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