EYEWITNESS EVIDENCE

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EYEWITNESS EVIDENCE

• A Guide for Law Enforcement

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EYEWITNESS EVIDENCE

• Eyewitnesses frequently play a vital role in
  uncovering the truth about a crime. The evidence
  they provide can be critical in identifying,
  charging, and ultimately convicting suspected
  criminals. That is why it is absolutely
  essential that eyewitness evidence be accurate
  and reliable. One way of ensuring we, as
  investigators, obtain the most accurate and
  reliable evidence from eyewitnesses is to follow
  sound protocols in our investigations.

National Institute of Justice, October, 1999
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Use of the Eyewitness Evidence Guide

• It represents a combination of the best current
  research, workable police practices and
  psychological research.
• It identifies procedures and practices that will
  produce more reliable and accurate eyewitness
  evidence in a greater number of cases while
  reducing or eliminating practices that can
  undermine eyewitness reliability and accuracy.

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Use of the Eyewitness Evidence Guide

• It describes practices and procedures that, if
  consistently applied, will tend to increase the
  accuracy and reliability of eyewitness evidence.
• Adherence to these procedures can decrease the
  number of wrongful identifications.

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True or False

• Following the proper procedures will tend to
  increase the accuracy and reliability of
  eyewitness evidence.
• True
• False

6
Incorrect

• Please try again

7
Correct

• The Eyewitness Evidence Guide for law Enforcement
  describes practices and procedures that, if
  consistently applied, will tend to increase the
  accuracy and reliability of eyewitness evidence.

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Use of theEyewitness Evidence Guide

• While the Guide outlines basic procedures that
  can be used to obtain the most reliable and
  accurate information from eyewitnesses, it is not
  meant as a substitute for a thorough
  investigation by law enforcement personnel.

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INVESTIGATING THE SCENE (Preliminary
Investigating Officer)

• After securing the scene and attending to any
  victims and injured persons, the preliminary
  investigating officer should
• Identify the perpetrators
• Determine the location of the perpetrator(s)
• Detain or arrest the perpetrator(s) if still
  present at the scene
• Determine/classify what crime or incident occurred

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INVESTIGATING THE SCENE (Preliminary
Investigating Officer)

• Broadcast an updated description of the incident,
  perpetrator(s), and/or vehicles.
• Verify the identity of the witness(es)
• Separate witnesses and instruct them to avoid
  discussing details of the incident with other
  witnesses.
• Canvass the area for other witnesses.

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OBTAINING INFORMATION FROM THE WITNESS(ES)

• Establish rapport with the witness.
• Inquire about the witness condition.
• Use open-ended questions (e.g., What can you
  tell me about the car?) augment with
  closed-ended questions (e.g., What color was the
  car?) Avoid leading questions (e.g., Was the
  car red?).

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Which type of questions are acceptable?

• Open-ended questions (e.g., What can you tell me
  about the car?)
• Leading questions (e.g., Was the car red?).

13
Incorrect

• Please try again

14
Correct

• Use open-ended questions (e.g., What can you
  tell me about the car?) augment with
  closed-ended questions (e.g., What color was the
  car?)

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OBTAINING INFORMATION FROM THE WITNESS(ES)

• Clarify the information received with the
  witness.
• Document information obtained from the witnesses,
  including the witness identity, in a written
  report.
• Encourage the witness to contact investigators
  with any further information.

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OBTAINING INFORMATION FROM THE WITNESS(ES)

• Encourage the witness to avoid contact with the
  media or exposure to media accounts concerning
  the incident.
• Instruct the witness to avoid discussing details
  of the incident with other potential witnesses.

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Developing and Using Composite Images

• Assess the ability of the witness to provide a
  description of the perpetrator.
• Avoid showing the witness any photos immediately
  prior to the development of the composite.
• Select an environment for conducting the
  procedure that minimizes distractions

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Developing and Using Composite Images

• Conduct the procedure with each witness
  separately.
• Determine with the witness whether the composite
  is a reasonable representation of the perpetrator.

19
Which scenario is recommended for preparing a
composite of a suspect?

• Have both witnesses help with the composite
  prepared on the shoulder of the road.
• Separate the witnesses and prepare the composite
  with one witness at a time in an office.

20
Incorrect

• Please try again

21
Correct

• Select an environment for conducting the
  procedure that minimizes distractions.
• Instruct the witness to avoid discussing details
  of the incident with other potential witnesses.

22
Field Identification Procedure(Showup)

• Determine and document, prior to the showup, a
  description of the perpetrator.
• Consider transporting the witness to the location
  of the detained suspect to limit the legal impact
  of the suspects detention.
• When multiple witnesses are involved
• Separate the witnesses
• If positive identification is received from one
  witness, consider using other identification
  procedures for remaining witnesses

23
Field Identification Procedure(Showup)

• Caution the witness that the person he/she is
  looking at may or may not be the perpetrator.
• Obtain and document a statement of certainty for
  both identification and nonidentifications.

24
Which of the following is improper for Field
Identifications (Showups)?

• Get a suspect description first.
• Transport the suspect to the victim.
• Tell the witness that the person he/she is
  looking at may or may not be the perpetrator.
• Always get a statement from the witness about the
  showup.

25
Incorrect

• Please try again

26
Correct

• Always get a suspect description prior to the
  showup
• Transport the witness to the suspects location
  to avoid legal disputes regarding detention and
  arrest.
• Inform the witness that he/she may or may not see
  the perpetrator.
• Have the witness prepare a statement about the
  showup and identification or nonidentification
  after it is concluded.

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Composing LineupsPhoto Lineups

• Include only one suspect in each identification
  procedure.
• Select fillers who generally fit the witness
  description of the perpetrator. Fillers should
  resemble the suspect in significant features.
• If multiple photos of the suspect are available,
  select a photo that resembles the suspect
  description or appearance at the time of the
  incident.

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Composing LineupsPhoto Lineups

• Include a minimum of 5 fillers (nonsuspects) per
  identification procedure.
• Avoid using fillers who so closely resemble the
  suspect that a person familiar with the suspect
  might find it difficult to distinguish the
  suspect from the fillers.
• Create a consistent appearance between the
  suspect and fillers with respect to any unique or
  unusual feature (e.g., scars, tattoos)

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Composing LineupsPhoto Lineups

• Consider placing suspects in different positions
  in each lineup, both across cases and with
  multiple witnesses in the same case.
• When showing a new suspect, avoid reusing fillers
  in lineups shown to the same witness.
• Ensure that no writings or information concerning
  previous arrest(s) will be visible to the witness.

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Composing LineupsPhoto Lineups

• View the spread, once completed, to ensure that
  the suspect does not unduly stand out.
• Preserve the presentation order of the photo
  lineup. In addition, the photos themselves
  should be preserved in their original condition.

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How many photos should appear in a photo lineup?

• 2
• 4
• 6
• 8

32
Incorrect

• Please try again

33
Correct

• Include a minimum of 5 fillers (nonsuspects) per
  identification procedure, plus one suspect per
  identification.

34
Composing LineupsLive Lineups

• Include only one suspect in each identification
  procedure.
• Select fillers who generally fit the witness
  description of the perpetrator.
• Consider placing suspects in different positions
  in each lineup, both across cases and with
  multiple witnesses in the same case.

35
Composing LineupsLive Lineups

• Include a minimum of four fillers (nonsuspects)
  in lineups shown to the same witness.
• Avoid using fillers who so closely resemble the
  suspect that a person familiar with the suspect
  might find it difficult to distinguish the
  suspect from the fillers.
• Create a consistent appearance between the
  suspect and fillers with respect to any unique or
  unusual feature (e.g., scars, tattoos).

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Instructing a Witness Prior to Viewing a Lineup

• Instruct the witness that he/she will be asked to
  view a set of photographs or group of
  individuals.
• Instruct the witness that it is just as important
  to clear innocent persons from suspicion as to
  identify guilty parties.
• Instruct the witness that individuals depicted in
  lineups may not appear exactly as they did on the
  date of the incident because features such as
  head and facial hair are subject to change.

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Instructing a Witness Prior to Viewing a Lineup

• Instruct the witness that the person who
  committed the crime may or may not be in the set
  of photographs or group of individuals.
• Assure the witness that regardless of whether an
  identification is made, the police will continue
  to investigate the incident.

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Instructing a Witness Prior to Viewing a Lineup

• Instruct the witness that the procedure requires
  the investigator to ask the witness to state, in
  his/her own words, how certain he/she is of an
  identification.

39
True or False

• After a witness has cooperated in a field
  identification, photo lineup, or live lineup,
  the officer should ask the witness to state how
  certain they are about the identification.
• True
• False

40
Incorrect

• Please try again

41
Correct
Instruct the witness that the procedure requires
the investigator to ask the witness to state, in
his/her own words, how certain he/she is of an
identification.
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Recording Identification Results

• Record both identification and nonidentification
  results in writing, including the witness own
  words regarding how sure he/she is.
• Ensure the results are signed and dated by the
  witness

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Recording Identification Results

• Ensure that no material indicating previous
  identification results are visible to the
  witness.
• Ensure that the witness does not write on or mark
  any materials that will be used in other
  identification procedures.
• Thorough documentation is required.

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ADDITIONAL RESOURCES

• http//www.ncjrs.gov/nij/eyewitness/eyewitness_evi
  dence_slides.pdf Eyewitness Evidence A Guide
  for Law Enforcement PowerPoint Presentation
  (available in training office)
• http//www.ncjrs.gov/pdffiles1/nij/178240.pdf
  Eyewitness Evidence A Guide for Law
  Enforcement (available in training office)
• http//www.ncjrs.gov/nij/eyewitness/188678.pdf
  Eyewitness Evidence A Trainers Manual for Law
  Enforcement (available in training office)

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ADDITIONAL RESOURCES

• Department Directive 42-10
• Professor Gary Wells _at_ http//www.psychology.iasta
  te.edu/faculty/gwells/homepage.htm (numerous
  articles concerning eyewitness evidence)