After the state's population geneticist wraps up his cross-examination, the prosecution calls Denise Lewis to the stand. She's also works for the LAPD as a lab technician who testifies about the chain of custody for hair and fiber evidence. Next up is the actual LAPD criminalist in the trace analysis lab. She physically collected evidence from the bloody gloves, victims' clothes, a blue cap found at Simpson's home and items from inside O.J.'s Ford Bronco.