Week 6 - Investigation + Profiling Flashcards

1
Q

R v Oickle

A

Police lied about polygraph tests being admissible

  • Has the police made any threats or promises to the suspect [quid pro quo]?
  • Where there any distasteful or inhumane conducts that would amount to an involuntary confession?
  • Does the suspect have an operating mind?
  • What was the degree of police trickery?
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2
Q

Reid Model 3 stages

A

Stage 1 – Gathering evidence related to the crime and to interview witnesses and victims
Stage 2 – Conducting a non-accusatorial interview of the suspect to assess any evidence of deception
Stage 3 – Conducting an accusatorial interrogation of the suspect in which a nine-step procedure is implemented

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3
Q

Reid Model goal

A

Make confessing to the crime more desirable than the anxiety of lying about it

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4
Q

Reid Model Step 1

A

The suspect is immediately confronted to his or her guilt

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5
Q

Reid Model Step 2

A

Psychological themes are then developed that allow the suspect to justify, rationalize, or excuse the crime

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6
Q

Reid Model Step 3

A

The interrogator interrupts any statements of denial by the suspect

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7
Q

Reid Model Step 4

A

The interrogator overcomes the suspect’s objections to the charges to a point at which the suspect becomes quiet and withdrawn

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8
Q

Reid Model Step 5

A

The interrogator ensures that the suspect does not tune out of the interrogation by reducing the psychological distance between them

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9
Q

Reid Model Step 6

A

The interrogator then exhibits sympathy and understanding, and the suspect is urged to come clean

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10
Q

Reid Model Step 7

A

The suspect is offered face-saving explanations for the crime

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11
Q

Reid Model Step 8

A

Once the suspect accepts responsibility for the crime, the interrogator develops this admission into a full confession

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12
Q

Reid Model Step 9

A

The interrogator gets the suspect to write and sign a full confession

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13
Q

Reid Model potential problems

A
  • Deception detection
  • Investigator bias
  • The coercive nature of the interrogation
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14
Q

R. v. Hoilett

A

Confession wasn’t accepted as conditions were found inhumane
- under influence of drugs
- left naked in cell for 1h30, refused napkin until he confessed

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15
Q

PEACE Model 5 steps

A

Preparation & planning
Engage & explain
Account
Closure
Evaluation

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16
Q

PEACE Model advantages

A
  • The more the suspect talks, the more they remember details that can be important
  • No non-verbal behaviour fully attached to deception (varies from person to person) - focus on what they are saying instead
  • People are prone to suggestion, which can alter what they recall (make them believe that they did the crime) – free recall limits suggestion
  • Even without coercion, people confess
17
Q

Types of false confessions (Kassin & Wrightsman, 1985)

A
  • Voluntary false confessions
  • Coerced-compliant false confessions
  • Coerced-internalized false confessions
18
Q

Populations vulnerable to false confessions

A
  • Juveniles
  • People with intellectual impairments
  • People with mental illness
19
Q

What are some of the consequences of false confessions?

A
  • A jury could convict the suspect for a crime they did not commit
  • May lead investigators down the wrong track; putting the public at further risk from the real offender
20
Q

Why are jurors unlikely to identify false confessions?

A
  • It counters self-interest
  • Difficulty to distinguish between true and false confessions
  • False confessions are very similar to true confessions in both their form and content
21
Q

5 Categories of Profiling

A
  • Crime Scene Profiling
  • Geographic Profiling
  • Psychological Profiling
  • Suspect-Based Profiling
  • Psychological Autopsy
22
Q

Two main approaches to Crime Scene Profiling

A
  • Deductive analysis
  • Inductive analysis
23
Q

Organized/Disorganized Dichotomy

A

Organized offender
- methodological and cunning, could be quite amiable, and usually carries out their crime at a distance from their residence
- A deliberate, cold, systematic scene

Disorganized offender
- Lacks cunning, has an aversion to society, and has trouble maintaining relationships; tends to commit their crimes closer to their residence
- A chaotic and messy scene

24
Q

Modus Operandi

A

The actions and procedures an offender uses to commit a crime successfully

25
Q

Personation

A

Any behaviour that goes beyond what is necessary to commit the crime (writing on the wall)
Signature – when such behaviours are demonstrated by a serial offender

Makes it easier to link the crimes

26
Q

Staging

A

The intentional alteration of the scene prior to the arrival of the police

To try to derail the police investigation (unlike undoing)
Make it seem like a suicide, accidental death
To divert attention of police away from suspect, to prevent the embarrassment of the victim’s family

27
Q

A Trophy / A Souvenir

A

A item taken from the crime scene
- trophy: item symbolizes the offender’s triumph over the victim
- souvenir: meaningful item taken by the offender to remember the crime

28
Q

Undoing

A

Behavioural pattern at the crime scene in which the offender tries to psychologically undo the crime
- make it seem like they are sleeping
- excessive facial battery

29
Q

Pitfalls of Crime Scene Profiling

A
  • Memory and cognitive biases (belief persistence)
  • Confirmation bias (gathering data that confirms beliefs)
  • Self-serving bias (credit success/deny failure)
  • Fundamental Attribution Error (behaviour is a product of personality rather than environment)
30
Q

Geographic Profiling

A
  • Geographic mapping (looking at hotspots)
  • Geographic profiling (movements of an offender or a small group)

Assumptions of GP
- A series of cases are linked to one offender
- At least 3 or 4 crimes are needed
- Offenses should have a stable base of operations
- There should be a short time interval between offenses
- The crime series must occur continuously over time

31
Q

Psychological Profiling

A

Predict the likelihood that a specific individual will be dangerous or violent to others at some point in time

Threat assessment
Risk assessment

32
Q

Threat assesment

A

Transient: don’t communicate a lasting intent to harm

Substantive: to take seriously
- Specific plausible details in the plan (on - this day, at this time, etc.)
- The threat is repeated several times
- Escalation, new evidence
- Invites an audience
- Acquired arms, weapons, guns, etc.

33
Q

Suspect-Based Profiling

A

Summarizes the psychological features of persons who might commit a specific crime

terrorism
- organized vs lone wolves
- typologies

34
Q

Typology of terrorists (Hoffman, 1993; 2008)

A
  • Rationally motivated terrorist
  • Psychologically motivated terrorist
  • Culturally motivated terrorist
35
Q

Psychological Autopsy

A

Conducted on a dead person for the purpose of determining not the cause, but the mode and motivation of the death

-Research: learning the sings of suicidal tendencies for learn suicide prevention
- Clinical practice applications: if they know why they committed suicide, can help family come to terms, lessen anger
- Litigation: was in foul play or suicide