jennifer beaudry, lecturer (pss)

Jennifer Beaudry, Lecturer (PSS)

Eyewitness Identification Memory

DataBlitz 26.04.2013

Swinburne

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Eyewitness Identification Memory

- Background- Experiment: Impact of disguise- Future directions

Overview

Swinburne

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Eyewitness Identification Memory

306DNA Exonerations

The Problem

Innocence Project, 2013

Swinburne

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Eyewitness Identification Memory

Inform

ants

/ Snit

ches

False C

onfes

sions

/ Adm

ission

s

Unvali

dated

/ Impro

per F

orens

ics

Eyewitn

ess M

iside

ntific

ation

s0

50100150200

Common Causes of Wrongful Convictions (First 225 cases)

Innocence Project, 2013

77%

52%

23%16%

Swinburne

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Eyewitness Identification Memory

System Variables- Lineup presentation- Lineup instructions- Lineup construction

Estimator Variables- Exposure duration- Age of witness- Disguise

Factors Influencing Eyewitness Identification Memory

SwinburneEyewitness Identification Memory

Stocking Disguise (N = 91)

6

None 1/3 2/3 Full

24 targets (6 per disguise level)Lineups: Target-present vs. Target-absent

Mansour, Beaudry, et al. (2012) Law and Human Behavior.

Swinburne

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Swinburne

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Eyewitness Identification Memory

24-Trial Repeated Measures Design (N = 91)

SwinburneEyewitness Identification Memory

Toque & Sunglasses Disguise (N = 87)

9

Toque & Sunglasses

Sunglasses

ToqueNone

24 targets (6 per disguise level)Lineups: Target-present vs. Target-absent

Mansour, Beaudry, et al. (2012) Law and Human Behavior.

Swinburne

10

Eyewitness Identification Memory

Target-Present Lineups (Stocking)

None 1/3 2/3 Full0%

20%

40%

60%

80%

100%

NoneFoilTarget

Swinburne

11

Eyewitness Identification Memory

Target-Present Lineups (Toque & Sunglasses)

None Toque Sunglasses Both0%

20%

40%

60%

80%

100%

NoneFoilTarget

Swinburne

12

Eyewitness Identification Memory

None 1/3 Toque

2/3 Sunglasses

Full Both

0

20

40

60

80

100

StockingToque/Glasses

Cor

rect

Iden

tific

atio

ns (%

)

Correct Identifications from Target-Present Lineups

Swinburne

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Eyewitness Identification Memory

Disguise and…- Role of metacognitions?- Jurors’ perceptions?

Future Directions

Acknowledgements: Jamal Mansour, Michelle Bertrand, Natalie Kalmet, Elisabeth Melsom, Rod Lindsay

jbeaudry@swin.edu.au

Eyewitness Identification Memory

#410-09-2674

Swinburne

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Eyewitness Identification Memory

None 1/3 Toque

2/3 Sunglasses

Full0

20

40

60

80

100

StockingToque/Glasses

Fals

e Id

entif

icat

ions

(%)

False Identifications from Target-Absent Lineups