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Steve Chapman (archive) May 14, 2001 Sometimes, Its a Crime to Believe Our Eyes Ten months later, her recollection changed. Seeing his photo in a
police lineup, she identified Pierce as the rapist. Never mind that his
co-workers said he was having lunch with them at the time. He was
indicted, convicted and sent to prison for 15 years. Twice he was denied
parole because he refused to admit what he had done. But last week, Pierce
walked out of prison, thanks to a DNA test proving his innocence. He
became one more argument for the widespread use of DNA analysis -- and one
more example of the fallibility of eyewitness identification.
In recent years, scores of inmates convicted of serious crimes,
including many on death row, have been exonerated by evidence that was
discovered or analyzed only years later. Almost all of them were
incriminated by a convincing eyewitness whose memory later turned out to
be totally, incontrovertibly wrong.
Such testimony, of course, is one of the most powerful forms of
evidence deployed in criminal trials. Few things are more persuasive to a
jury than a victim or other witness who takes the stand, looks straight at
the defense table and declares, "That's him. That's the man who did it. I
saw him with my own eyes."
But few types of evidence are less trustworthy, either. In another rape
case, the victim and two other people placed Herman Atkins at the scene of
the 1986 crime -- testimony persuasive enough to earn him a 47-year prison
sentence. But last year, a DNA test exonerated Atkins. Two women raped in
North Carolina identified one Ronald Cotton as their attacker -- and
continued to insist he was guilty even after DNA analysis proved him
innocent.
It's not that witnesses deliberately lie. Experts have established that
memory is susceptible to all sorts of capricious influences. Police may
inadvertently or intentionally nudge witnesses to choose one person in a
lineup or set of photos. Witnesses may pick the person who looks most like
the culprit, even if he's not in the group.
Iowa State scholars Gary Wells and Amy Bradfield did an experiment
showing 352 participants a surveillance video of a man who, they said, had
shot a security guard. When presented with photos of five different men,
all 352 fingered one or the other of them -- even though the villain was
not, in fact, among the five. Some prosecutors are leery of cases that
rest on the testimony of a single eyewitness simply because they know such
testimony is often mistaken.
False memories can come from almost anywhere. In the Atkins case, the
victim identified him after seeing his photo on a wanted poster at the
police station.
In another case, reports the Chronicle of Higher Education, an
Australian psychologist was implicated by a rape victim. But he had a
perfect alibi: He was being interviewed live on TV at the time of the
crime. So how did he get accused? It turned out the victim had seen him on
TV as she was being attacked, and her mind somehow converted him into the
rapist.
Juries, however, are likely to be swayed by someone who identifies a
criminal under oath. So obviously, some method is needed to offset that
impulse. Last week, New York's highest state court ruled that trial judges
may admit expert testimony about the shortcomings of eyewitness
identification, which courts there have generally barred in the past.
The theory was that juries don't need to hear from experts on subjects
that they understand from personal experience -- like, duh, remembering a
face you've seen. But the New York Court of Appeals concluded, "Despite
the fact that jurors may be familiar from their own experience with
factors relevant to the reliability of eyewitness observation and
identification, it cannot be said that psychological studies regarding the
accuracy of an identification are within the ken of the typical juror."
Some states already allow such testimony, and it's generally permitted
in federal court. But in most places, the criminal justice system has been
slow to adapt to evidence suggesting that eyewitness identifications
should not always be believed.
One of the simplest correctives is for police, prosecutors and juries
not to put too much trust in eyewitnesses. They should keep in mind what
the rape victim said as she testified against Jeffrey Pierce at his trial:
"I will never forget his face."
©2001 Creators Syndicate, Inc. ![]()
Copyright 1991-2000
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