Interviewing

Question 1

Strategic use of evidence

Hartwig et al (2006)

Answer 1

Early vs. Late (strategic) disclosure of evidence
Mock theft paradigm
Three pieces of ‘evidence’
Witness in store; assistant saw case moved; fingerprints Results (veracity judgement accuracy)
- 85% (late) vs. 56% (early)
Critique
- 50% base rate – interviewers informed
- Small amount of evidence – 3 items
- Interviewee did not have to construct own deception

Question 2

‘Tactical’ use of evidence

Answer 2

Method
Immersive simulation game – ‘dodgy builders’
Players construct their own plans – self generated deceptions
Unknown ratio of Truth-tellers to Liars

Question 3

Current practices: Interviewing for “Suspicious Signs” and the “SPOT” programme

Answer 3

Interviewing for ‘Suspicious Signs’
Documentation and Journey
Behaviour and Appearance

The ‘SPOT’ Program
TSA approach to detecting threat
Passive observation of signs followed by interview

Question 4

Aviation Screening Study 2008 


Answer 4

Aim
- To evaluate suspicious signs screening 
Methods
- Observational studies at UK & EU airports
- Statistical modelling
The aviation study tells us:
- Avoid ‘over-resolving’ suspicions 
- Make veracity testing an explicit goal

Question 5

Controlled Cognitive Engagement (CCE) ™

Answer 5

Controlled
- Screener controls the conversation
- Incremental phased questioning 
- Clear exit points
Cognitive
- Screener decision-making skills
- Asymmetric cognitive loading
- Unpredictable
Engagement
- Enhanced customer service
- Reducing stereotype biases
- Timeline to observe behaviour change.

Question 6

Stages of CCE

Answer 6

Stage 1: Baselining
- Build rapport and open a dialogue
- Establish a behavioural baseline
Stage 2: Information gathering
- Gather information using open unpredictable questions 
- Commit passenger to version of truth 
Stage 3: Veracity testing
- Test the truth of the account using probe questioning
- Observe behaviour change