The latest corruption scandal in the Los Angeles Police Department at the Rampart division has mushroomed to involve the investigation into more than 3,000 cases vastly more than previously reported. The public defender’s office will have to review more than 800 potentially tainted cases involving former LAPD officer Rafael Perez, who has been convicted of cocaine theft and is assisting authorities under a grant of immunity, and 2,500 more involving other officers from the Rampart CRASH anti-gang unit who either have been fired or are under investigation.