Burlington Police Department Racial Disparities in Traffic Policing - - PowerPoint PPT Presentation

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Apr 10, 2023 232 likes •406 views

Burlington Police Department Racial Disparities in Traffic Policing Stephanie Seguino University of Vermont and Nancy Brooks Cornell University Focus of analysis The analysis concentrates on traffic stops and outcomes that are the result

SLIDE 1

Burlington Police Department Racial Disparities in Traffic Policing

Stephanie Seguino University of Vermont and Nancy Brooks Cornell University

SLIDE 2

Focus of analysis

The analysis concentrates on traffic stops and
utcomes that are the result of officer

discretion.

We therefore ignore externally generated

stops & arrests on a warrant.

SLIDE 3

Four indicators

1. Stop rates by race compared to racial shares
f the population
2. Share of outcomes that lead to:
Ticket (versus a warning)
Arrest
Search
3. Searches that yield contraband
4. Officer disparities in stop rates

SLIDE 4

The data

Results for 2012 - 2015

– Averages for 2012-2015. – Annual trends from 2012 to 15 – Focus on white and black outcomes.

SLIDE 5

2012-15

Whites Blacks Hispanics Asians

Share of Traffic Stops

87.2% 7.9% 0.7% 4.1%

Share of Population

88.2% 4.5% 5.4%

Ticket rate

28.2% 35.9% 27.9% 25.9%

Warning rate

69.4% 61.6% 70.3% 72.0%

Arrest rates

1.2% 1.4% 0.8% 1.1%

Search Rate

1.1% 3.3% 5.0% 0.1%

“Hit” Rate

63.5% 46.2% 28.6% 0.0%

SLIDE 6

Blacks as share of stops and population, 2012-15

7.5% 7.3% 7.4% 9.5% 4.5% 4.5% 4.5% 4.5% 0% 1% 2% 3% 4% 5% 6% 7% 8% 9% 10% 2012 2013 2014 2015 Blacks as share of stops Blacks as share of population

SLIDE 7

Investigatory Stops by Race

88.2% 4.5% 5.4% 79.0% 18.8% 1.7%

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

White Black Asian Share of population Share of investigatory stops

SLIDE 8

Black and white ticket rates

26.4% 28.3% 28.2% 30.4% 38.1% 33.4% 29.8% 41.4% 20% 25% 30% 35% 40% 45% 2012 2013 2014 2015 Whites Blacks

SLIDE 9

Black and white arrest rates

1.6% 1.1% 0.8% 1.2% 1.2% 2.0% 0.9% 2.4% 0.0% 0.5% 1.0% 1.5% 2.0% 2.5% 3.0% 2012 2013 2014 2015 White Black

SLIDE 10

Black, Asian, and white search rates

0.9% 1.6% 0.7% 1.2% 2.5% 6.3% 2.5% 2.4% 0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 2012 2013 2014 2015 White Black Asian

SLIDE 11

Black and white “hit” rates: All

utcomes

61.9% 65.1% 74.3% 55.1% 60.0% 42.9% 50.0% 36.4% 20% 30% 40% 50% 60% 70% 80% 2012 2013 2014 2015 White Blacks

SLIDE 12

“Hit” rates that result in arrest or ticket (excludes warnings)

31.0% 47.6% 37.1% 44.7% 40.0% 33.3% 20.0% 27.3% 10% 15% 20% 25% 30% 35% 40% 45% 50% 2012 2013 2014 2015 Whites Blacks

SLIDE 13

Data Quality: Missing data (includes “unknowns”)

1.7% 4.8% 2.1% 3.3% 1.2% 1.9% 1.8% 0% 1% 1% 2% 2% 3% 3% 4% 4% 5% 5% Missing Age Missing Race Missing Sex Missing Reason Missing Result Missing Search Missing Search Outcome

N=1,135

SLIDE 14

Blacks as % of stops by officer, ranked high to low, 80 stops+

0% 2% 4% 6% 8% 10% 12% 14% 16% 18% 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77

% of stops with perceived black driver

Black share of population = 4.5%

SLIDE 15

Black Males as % of Stops by Officer, 80+

0% 5% 10% 15% 20% 25%

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55

% Black Males

SLIDE 16

How Does Burlington Compare?

Black search rates/White search rates, 2012-15

1.5 1.6 2.0 2.1 2.2 2.4 2.6 2.7 2.7 2.8 2.9 3.0 4.6 5.0 5.2 0.0 1.0 2.0 3.0 4.0 5.0 6.0

SLIDE 17

Raw Data for 2012-15

All Years White Black Asian Hispanic

Tickets

5,571 671 238 47

Warnings

13,709 1,151 662 111

Arrests

235 26 10

Searches

189 52 1 7

Hits (searches w/contraband) & ticket or arrest

77 16

Hits (searches w/contraband) & warning, ticket, or arrest

120 24 2

Hit despite No Search recorded

42 1 4