A:Remember that just because you have been arrested, it does not mean that you are automatically guilty. Once you have been brought to the police station, the bond will be set. This means that you do not have to sit in jail while the process is underway; you are free to go home to wait for your arraignment. The purpose of bail is to ensure that you return to court for the arraignment. If you are unable to post bail, then you will be required to remain in custody until the arraignment. The amount will be determined by the courts and may depend on the type of charges filed.