If an eye-witness makes an erroneous identification, or a police officer misunderstands a piece of evidence, or a witness for the prosecution is coerced into gi

If an eye-witness makes an erroneous identification, or a police officer misunderstands a piece of evidence, or a witness for the prosecution is coerced into giving false testimony, is that any different? In each case we're talking about information that turned out to wrong. This is just new information in the world. Sometimes it will be wrong or sometimes we will misunderstand it -- just like all other kinds of information.