How Does The Bail Bonds Process Work? There is certain information that a bail agent will need in order to help you: Where is the person in custody? (Make sure that you ask the person in custody where they are located including the city, state, and the name of jail). What is the full name and booking number of person in jail? The bail agent will need this information in order to contact the jail. The bail agent can get the booking number for you if you forgot or if it was not