Johnnie Cochran conducted an exhaustive cross-examination of Detective Tom Lange, systematically exposing critical failures in crime scene investigation and evidence handling. Through methodical questioning, Cochran elicited admissions that blood evidence was never collected or tested, hands were not bagged for preservation, numerous items were booked months late or not at all, and the Bundy scene remained unsecured for three weeks before crucial evidence was discovered. The defense built a narrative of investigative incompetence while prosecutors weathered repeated objections and saw fingerprint evidence ruled inadmissible on hearsay grounds.

• Blood spots on Nicole Brown Simpson's back never collected or tested, Lange acknowledged
• Rear gate blood not collected for three weeks after murder, with no police perimeter maintained at Bundy
• No fingerprints of OJ Simpson found anywhere at Bundy crime scene despite extensive investigation
• Multiple evidence items — plastic heart, cigarette butt, loose change, ski cap — booked months late or never booked
• Lange took OJ Simpson's Reebok shoes home to Simi Valley overnight instead of immediately booking per LAPD policy
• No rape kit performed on Nicole Brown Simpson, Lange conceded
• Fingerprint evidence ruled inadmissible on hearsay grounds when foundation objections sustained
• Crime scene videotape became subject of admissibility dispute over lens distortion and editing concerns
• Potential contamination from coroner's personnel documented, including dropped gloves near Goldman's body