The document outlines a 3-stage interrogation process involving evidence collection, a pre-interrogation interview to determine deception, and the interrogation itself where guilt is established. It also discusses how interrogators manipulate a suspect's anxiety by increasing fear of remaining deceptive while decreasing fear of confessing. Finally, it lists 9 principles for interrogation including confronting with evidence, developing themes to excuse the crime, interrupting denials, showing sympathy, and getting a written confession.

1. 3 STAGES
• 1. Collection of evidence
• 2. Pre-interrogation interview
• Non-accusatorial interview
• Determine whether the suspect is lying
• 3. Interrogation
• Only guilty suspects
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2. MANIPULATING ANXIETY
• Guilty suspect’s anxiety:
• Fear of consequences of confessing > Fear associated with
remaining deceptive
• Interrogator’s job is to shift the balance, so that:
• Fear associated with remaining deceptive > Fear of
consequences of confessing
• Do this in two ways:
• Increase anxiety associated with remaining deceptive
• Decrease fear of consequences of confessing
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3. INTERROGATION: 9 PRINCIPLES
• 1. Confront suspect with (fake) evidence.
• 2. Develop themes to excuse the crime.
• 3. Interrupt denials.
• 4. Suspect becomes quiet and withdrawn.
• 5. Reduce distance.
• 6. Sympathy and understanding.
• 7. Offer face-saving explanations.
• 8. Develop admission into full confession.
• 9. Suspect writes and signs full confession.
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4. INTERROGATION: 9 PRINCIPLES
• 1. Confront suspect with (fake) evidence.
• MAXIMISATION
• 2. Develop themes to excuse the crime.
• MINIMISATION
• 3. Interrupt denials.
• 4. Suspect becomes quiet and withdrawn.
• 5. Reduce distance.
• MAXIMISATION
• 6. Sympathy and understanding.
• MINIMISATION
• 7. Offer face-saving explanations.
• MINIMISATION
• 8. Develop admission into full confession.
• 9. Suspect writes and signs full confession.
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