Office of the District Attorney is one of the departments operated by the local government of the county of Santa Clara in California. The department, located in San Jose, Calif., is responsible for analyzing legal cases on the basis of evidence and trial. It assesses crimes and takes suitable action on the criminal as per the individual cases. Office of the District Attorney focuses on the prevention of crime and reduction of crime rate in the city. The department has facilities to help rehabilitate the criminals. It is also involved in pretrial hearings on constitutional issues. Office of the District Attorney is one of the largest prosecuting agencies in Northern California. The department manages more than 45,000 cases every year. It has a staff of nearly 500 people, including attorneys, investigators, forensic analysts, paralegals, clerical workers and volunteers. The department s crime laboratory analyzes various evidence items every year.