Day 27 was consumed by a discovery violation involving alibi witness Rosa Lopez. The defense's failure to timely disclose a tape recording of Pavelic's July 29 interview with Lopez prompted immediate judicial intervention. After the prosecution received an emergency recess to review the tape, Judge Ito granted a continuance until Thursday while sanctioning the defense to pay Lopez's hotel costs through that date.

• Defense failed to disclose micro cassette tape of Pavelic's July 29 interview with alibi witness Rosa Lopez until the morning of her examination
• Marcia Clark argued she needed time to prepare cross-examination and impeachment using the tape
• Judge Ito ordered a morning recess and afternoon continuance for prosecution to review the material
• Rosa Lopez testified emotionally through a Spanish interpreter, expressing exhaustion and frustration at repeated delays and desire to return to Guadalajara
• Judge Ito apologized to Lopez and sanctioned the defense by ordering payment of her hotel costs through Thursday, March 2
• Conditional examination rescheduled to Thursday; material witness bonding ordered to ensure Lopez's return