Being accused of a violent crime can turn life upside down, especially when a person knows they had nothing to do with it. In some cases, the accusation begins with an eyewitness who genuinely believes they identified the right person. Even so, honest mistakes can happen, and an eyewitness who seems confident is not always correct.
Massachusetts courts recognize that eyewitness identification should be evaluated carefully because several factors can affect a person’s memory.
Why do eyewitness mistakes happen?
A person rarely witnesses a criminal incident in ideal conditions. A high-stress environment, bad lighting or having only a few seconds to observe someone can all impair the ability to recall a face accurately.
Other factors may also affect an identification, including:
- A brief encounter
- A weapon drawing the witness’s attention
- Similar physical features between different people
- A long delay before the identification takes place
These factors do not necessarily make an identification inaccurate, but they help explain why judges and juries are instructed to evaluate eyewitness testimony carefully.
Is an eyewitness identification enough to prove a case?
It is unusual for courts to rely on an eyewitness identification alone. An eyewitness identification is only one part of a criminal investigation. Police and prosecutors may also consider surveillance video, fingerprints, DNA evidence, phone records and statements from other witnesses.
Massachusetts law also recognizes that a witness’s confidence does not necessarily reflect the accuracy of the identification. Jurors may receive instructions explaining that they should consider the circumstances surrounding an eyewitness identification before deciding how much weight to give it.
Why does mistaken identity matters?
Mistaken eyewitness identification has contributed to many wrongful convictions in the United States. For this reason, identifying a suspect marks only an initial step when evaluating a criminal case. An eyewitness can be completely certain in their own mind and still point out the wrong individual.
Checking the entire body of evidence, rather than building a case around a single visual claim, provides a far more reliable picture of the facts. Speaking with an experienced criminal defense attorney can help ensure that all of the evidence is carefully examined and that the accused person’s rights are protected.
