Week 6 - Investigation + Profiling Flashcards
R v Oickle
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?
Reid Model 3 stages
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
Reid Model goal
Make confessing to the crime more desirable than the anxiety of lying about it
Reid Model Step 1
The suspect is immediately confronted to his or her guilt
Reid Model Step 2
Psychological themes are then developed that allow the suspect to justify, rationalize, or excuse the crime
Reid Model Step 3
The interrogator interrupts any statements of denial by the suspect
Reid Model Step 4
The interrogator overcomes the suspect’s objections to the charges to a point at which the suspect becomes quiet and withdrawn
Reid Model Step 5
The interrogator ensures that the suspect does not tune out of the interrogation by reducing the psychological distance between them
Reid Model Step 6
The interrogator then exhibits sympathy and understanding, and the suspect is urged to come clean
Reid Model Step 7
The suspect is offered face-saving explanations for the crime
Reid Model Step 8
Once the suspect accepts responsibility for the crime, the interrogator develops this admission into a full confession
Reid Model Step 9
The interrogator gets the suspect to write and sign a full confession
Reid Model potential problems
- Deception detection
- Investigator bias
- The coercive nature of the interrogation
R. v. Hoilett
Confession wasn’t accepted as conditions were found inhumane
- under influence of drugs
- left naked in cell for 1h30, refused napkin until he confessed
PEACE Model 5 steps
Preparation & planning
Engage & explain
Account
Closure
Evaluation
PEACE Model advantages
- 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
Types of false confessions (Kassin & Wrightsman, 1985)
- Voluntary false confessions
- Coerced-compliant false confessions
- Coerced-internalized false confessions
Populations vulnerable to false confessions
- Juveniles
- People with intellectual impairments
- People with mental illness
What are some of the consequences of false confessions?
- 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
Why are jurors unlikely to identify false confessions?
- 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
5 Categories of Profiling
- Crime Scene Profiling
- Geographic Profiling
- Psychological Profiling
- Suspect-Based Profiling
- Psychological Autopsy
Two main approaches to Crime Scene Profiling
- Deductive analysis
- Inductive analysis
Organized/Disorganized Dichotomy
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
Modus Operandi
The actions and procedures an offender uses to commit a crime successfully