"In police lineups, is the method the suspect?"

Even if most eyewitness identifications are reliable, "we know it is accounting for more wrongful convictions than all the other causes put together," including false confessions, jailhouse "snitches," and outright fraud, says [Iowa State psychology] Professor Wells. "When a witness takes the stand and says, 'that's the guy I saw,' that is so persuasive. We need to find ways to prevent mistaken IDs from happening in the first place."