The review of 50 cases by a Brooklyn detective accused of fabricating evidence includes one that hinged on testimony by a witness named Sharron Ivory. Ivory told the New York Times he lied on behalf of Louis Scarcella, the detective now under investigation, who told him to say he recognized a suspect’s photo. “I didn’t recognize anyone,” Ivory told the Times by phone from prison. “The cops would say the number out loud and say, ‘Take a good look at it,’ so I went with it. I thought they knew what they were doing. And I figured if it wasn’t him, he could beat it at trial.” New Brooklyn D.A. Kenneth Thompson is going to have his work cut out for him right from the start with this one.