Officers on patrol near the 12th Street Station were flagged down by an Oakland Ambassador who wanted to report that he was the victim of a crime. The victim reported that the suspect had just battered him and brandished a knife in a threatening manner before fleeing on foot. Officers searched the area and located the suspect nearby. The suspect was discovered to be on probation and is a registered sex offender. The suspect was turned over to the Oakland Police Department who responded to investigate the incident.