of the lineup. Researchers have termed the
phenomenon “relative judgment.”
12
Like a
multiple choice test without an option for
“none of the above,” witnesses might not
understand that not selecting anyone is still
a viable choice. When witnesses are told that
they don’t have to make a selection and that the
investigation will continue regardless, they are
less likely to fall back on choosing the person
who looks most like the perpetrator relative
to the other members of the lineup.
4. Witnesses’ confidence in the identification is
susceptible to suggestion and subject to change
Studies have shown a surprising lack of correla-
tion between the confidence of the witness and
the accuracy of his identification.
13
In wrongful
convictions overturned by post-conviction DNA
testing, witnesses have testified that they were
“100% positive” of the identification, saying that
they “would never forget that face” – despite
having identified the wrong person. How does
this happen? The answer may lie in the informa-
tion the witness receives after the identification.
The lineup administrator may have affirmed the
identification – “Yes, that’s who we thought it was.”
Subtle affirmations from the administrator such
as a nod or saying, “Okay, good,” can also bolster
a witness’s confidence. Studies have shown that
witness’s confidence increases with positive feed-
back, even if the witness later denies that the
feedback had any effect on her level of certainty.
14
This increased confidence can even alter the
witness’s accounting of events or her recollection
of the identification procedure itself. She may
remember being certain of the identification,
when, in fact, the record of the identification
procedure will show that she was hesitant and
uncertain.
15
Perhaps the witness learned that her co-witness
also identified the same person or that the
person she identified had a prior criminal
record. The witness may also have been given
more than one opportunity to identify the
suspect; for example, in both a photo array and
a physical lineup. With each identification or
new bit of information, the witness becomes
more and more confident in the identification,
probably without even realizing it. By the time
of the trial, the witness takes the stand and
provides very convincing testimony that a jury
will often not question.
Case Example: Ronald Cotton
Sentence Served: 10.5 years
Conviction: Rape, Burglary
Ronald Cotton was misidentified in both a photo
array and a physical lineup by a rape victim in
North Carolina. After the photo array, investiga-
tors told the victim, “You did great.” She was
invited back to view a physical lineup in which
the only lineup member who had also been in
the photo array was Cotton. She identified him
a second time. The detective told her, “We
thought that might be the guy. It’s the same
person you picked from the photos.” The victim,
Jennifer Thompson-Cannino, testified at two
trials about her absolute certainty that Cotton
was her assailant – even after being presented
with a person at the second trial who it was later
discovered was the real perpetrator. Cotton was
sentenced to life plus 54 years and spent over
10 years in prison before his exoneration
through DNA testing in 1995.
Thompson-Cannino has since become an
advocate for eyewitness identification reform.
In 2009, she and Cotton published a book about
their experience, “Picking Cotton.” In the book,
she recalls how her false sense of confidence
13
PROBLEMS WITH TRADITIONAL EYEWITNESS IDENTIFICATION PROCEDURES