You learn what charges the prosecutor has filed against you. You may enter a plea to the criminal charges filed against you. If you have been arrested, you have the right to be arraigned on any charges usually within two court days. At the arraignment, you can plead guilty, no contest, or not guilty, or waive time to enter a plea. Plea negotiations can also take place at the arraignment. What is An Arraignment in California? Read about Plea deals in California