Mistaken identity

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This article concerns the criminal defense; for films by this name, see Mistaken Identity
Criminal defenses
Part of the common law series
Defenses to crime
Actual innocence
Excuse and exculpation
Defenses that deny the act:
Alibi  · Mistaken identity
Frameup  · Falsified evidence
False confession  · Automatism
Defenses that negate intent:
Infancy  · Entrapment
Insanity  · Mental disorder
M'Naghten Rules
Diminished responsibility
Mistake of law  · Mistake of fact
Intoxication
Defenses that justify the act:
Self defense  · Consent
Duress  · Necessity
Provocation
See also Criminal Law
Criminal Procedure
Other areas of the common law
Contract law  · Tort law  · Property law
Wills and trusts  · Evidence
Portals: Law  · Criminal justice

Mistaken identity is a defense in criminal law which claims the actual innocence of the criminal defendant, and attempts to undermine evidence of guilt by asserting that any eyewitness to the crime incorrectly thought that they saw the defendant, when in fact the person seen by the witness was someone else. The defendant may question both the memory of the witness (suggesting, for example, that the identification is the result of a false memory), and the perception of the witness (suggesting, for example, that the witness had poor eyesight, or that the crime occurred in a poorly lit place).

Because the prosecution in a criminal case must prove the guilt of the accused beyond a reasonable doubt, the defendant must convince the jury that there is reasonable doubt about whether the witness actually saw what the witness claims to have seen, or recalls having seen. Although scientific studies have shown that mistaken identity is a common phenomenon, jurors give very strong credence to eyewitness testimony, particularly where the eyewitness is resolute in believing that their identification of the defendant was correct.

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[edit] Studies

Researchers like Elizabeth Loftus have challenged eyewitness testimony based on the fact that people's memory can be distorted. In her study she questioned eyewitnesses about a videotape of a car accident. Witnesses were asked "How fast were the cars going when they hit each other?" However, some witnesses were asked the same question with the verb "hit" replaced by the verb "smashed". Those who were asked the question with "smashed" as the verb said the cars were moving faster than those who were asked the same question with the verb "hit." Additionally, when asked if there was broken glass at the scene, those who heard "smashed" were more likely to say there was than those who heard "hit." There was no broken glass in the videotape. Hers is only one example of studies that show memory can be susceptible to distortions.

[edit] Case studies

With genetic fingerprinting and DNA evidence now commonplace, many convictions based on eyewitness testimony are being re-examined. According to statistics, over 75% of the cases of DNA exonerations have involved mistaken eyewitness identification.


Abraham Lincoln used mistaken identity to defend William "Duff" Armstrong in 1858. He used a farmer's almanac to prove that a witness could not have seen Armstrong in the moonlight, as the position of the moon that night would not have provided sufficient illumination. Armstrong was acquitted.

[edit] Ronald Cotton

Another case demonstrating mistaken identity is the case of Ronald Cotton. In 1984 Jennifer Thompson was raped. During the attack she studied the attacker's face, determined to identify him if she survived the attack. When presented with a photo, she identified Cotton as her attacker. Twice she testified against him, even after seeing Bobby Poole, the man who boasted to fellow inmates that he had committed the crimes Cotton was convicted of. After serving 11 years of his sentence, DNA testing conclusively proved that Poole was indeed the rapist. Thompson has since become a critic of the reliability of eyewitness testimony. She was remorsefull after learning that Ronald was a innocent and sent to critics. Ronald earned a compesation of $5,000.

[edit] References