As we’ve seen, the memories of eyewitnesses can be fickle things. But confident eyewitnesses can sway the minds of juries. There is a grain of sense in this – look at a large group of people and they’re generally more accurate if they’re more confident in their memories. But for any individual, confidence is a poor gauge of accuracy because we all differ in how confident we are in the first place. The consequences of overly relying on the confidence of memory can be catastrophic. Eyewitness misidentifications are the single greatest reason why innocent people are convicted for crimes they did not commit.