Chances are, if you've never been arrested or known anyone who has, you don't know how bail bonds work. You might have heard the term, but unless you've actually gone through the process, you might not really understand. So, just in case you ever need this information, here are answers to some of the most common questions about bail bonds. What is a bail bond? Bail is a contract between a person who has been arrested and the court, in which the defendant agrees to appear for his scheduled court date, in return for an amount of money which is held in surety.