Former Northern Illinois University police officer Andrew Rifkin was charged with sexually assaulting a female freshman student at NIU in 2011.
Following his arrest, Rifkin was interviewed by two university police officers for about two and a half hours. That interview was recorded.
Rifkin's attorney, Bruce Brandwein, says a large portion of the recorded interview was not recovered. He also says there are missing text messages between Rifkin and the victim from days following the incident.