Criminal Inv-Chapter 7, Interviewing and Interrogations Flashcards Preview

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Flashcards in Criminal Inv-Chapter 7, Interviewing and Interrogations Deck (41):


person to person conversation for purpose of obtaining info about crime or its circumstances


interview at crime scene designed to

elicit complete and accurate information . These types of interviews are nonstructured. Follow up interviews are more structured and designed to address specific areas of concern


what percentage of interviews are informal and take place outside of an office setting

80 percent


reverse transference or retroactive interference

when witness overhears other witnesses discussing their observations and then takes on some, if not all, of the info as his own



developing harmonious relationship with another person.


interview of witness- four steps process

1.basic open-ended questions- what happened, what did you see or hear. NO NOTE taking.(distraction)
2. witness repeat story. Now take notes. Address competency or credibility of witness
3. interviewer going over his notes with witness. Ensures accurate records of what witness said
4. thanking witness for cooperating-


most people speak at a speed of how many word a minute

125 wordss


what percentage of our conversation with one another is nonverbal

65 percent


traditional methods of detecting deception during an interview succeed only ____percent of time

50 percent


detecting deception is based on 4 critical domains

comfort/discomfort, emphasis, synchrony and perception management



person level of comfort or discomfort is one of most important clues interviewers should focus on. ex. jiggling their feet, fidgeting, perspiration, breathing increase, rubbing the forehead, neck



to emphasize points, normally people incorporate various parts of their body. Liars, for most part, do not emphasize with nonverbals.



certain amount of harmony occurs in speech patterns, sitting style, general expressions. ex. I did not do it, while nodding their heads up and down, as if to say Yes, I did it.


perception management

try to influence their intended targets of deception with verbal and nonverbal behavior designed t demonstrate the implausibility of their invovlement. ex: I could never hurt someone, Lying is beneath me. These are intended to influence the perception of the interviewer


Neurolinguistic eye movement

direct link between brain activity and eye movement. This linkage useful in detecting deception. 90 percent of popu will move eyes left when recalling something they actually experienced. Same individuals will move eyes right when they are creating something in mind. 10 percent of pop are typically left-handed who simply reverse the movement.


polygraphs three components

pneumograph- records respiration
galvanotgraph- records electrodermal response
cardiograph- records changes in pulse and blood pressure


what is considered to be most reliable indicator of deception in polygraphs



the least dependable in polygraphs is

galvanic skin response GSR


sympathetic division of the autonomic nervous system

when stimulated by reactions such as anger and fear, mobilizes the body and its resources for emergencies. subject cannot his his involuntary responses to a situation.


The so-called peak-of-tension questions relate to

actual circumstances of the crime


Frye v US

regarding the general acceptance of lie detection in court


California legislature, in response to California Supreme Court banning testimony of witnesses who have been hypnotized to aid in recollection

enacted legislation that allow such a witness to testify under very limited circumstances. The substance of the prehypnotic memory of witness must be preserved in written, audiotape or videotape form prior to hypnosis session. Session must be recorded by licensed medical dr or psychologist experienced in use of hypnosis


Cognitive interviewing

used to enhance witness ability to recall events. Witness ability to recall events in different sequences. Witness reinstating the context of an event invovling the witness recall all of his experiences before, during and after the event. Changing the sequence . Changing perspectives


What are an excellent means of documenting the story told to the investigator by witness




the adversarial questioning of a suspect with the goal of soliciting an admission or confession of guilt.


Brown v Mississippi,

Brown suspected of murder. Arrested and whipped until he confessed. Confession not voluntary


Ward v Texas

suspect in murder. transported from county to county more than 100 miles from home for 3 days, not allowed to contact family, until finally confessed.
holding person incommunicado was coercive


Fikes v Alabama 1957

held in solitary confinement for 10 days until he confessed. Coersive and involuntary confes


Ashcraft v Tennessee 1944

def questioned for 36 straight hours until he confessed. coercive and involuntary confes


Haley v Ohio 1948

questioning a 15 yr old from midnight to five in morning until he confessed was coercive


Davis v North Carolina 1966

Def questioned once or twice a day for 16 straight days until he confessed. Coercive


Mincey v Arizona, 1978

def in hospital after being shot by police. Detective questioned def for 4 hours until def confessed. Crt found def's will was weakened by pain and shock, Confession not voluntary


Townsend v Sain, 1963

suspect in robbery. suspect a heroin addict and during questioning, suspect exhibited symptoms of withdrawal. Det's summons a doctor who gave suspect medication to alleviate the discomfort. Medication had the effect of truth serum and def confessed. Cr found def confession was not his free will. not voluntary


Escobedo v Illinois, 1694

Def picked up for murder. while enrt to police station, Def requested to speak with attorney. Request denied. Attorny arrived at station and denied access to client. after 4 hrs of questioning , def confessed. Denied Asst to Counsel.


two years after Escobedo, Miranda v Arizona

miranda rights


emotional offender

person who experiences feelings of remorse and mental anguish as result of committing offense. Types of offenders here: homicides, rapes, physical assault, first time offenders.


nonemotional offender

person who ordinarily does not experience a troubled conscience as result of commiting crime. This offender may have antisocial personality disorder or may be career criminal who perceives committing crimes as a business.


most effective tactic to use on nonemotional offender is

factual analysis approach- appeals to suspects common sense and reasoning rather than emotions. designed to persuade the suspect that his guilt is established and the intelligent choice to make is tell the truth


While establishing rapport, the investigator must make assessments regarding the potential witness's _____ and _____

competency and credibility


Clues to deception can be obtained from the suspect's _____,_____ and ______ during the interviewing process

body language, demeanor and comfort level


Most important clues interviewer should focus on when trying to establish veracity.

comfort and discomfort