Traditionally, bail is some form of property deposited or pledged to a court to persuade it to release a suspect from jail, on the understanding that the suspect will return for trial or forfeit the bail (and possibly be brought up on charges of the crime of failure to appear). In some cases bail money may be returned at the end of the trial, if all court appearances are made, regardless of whether the person is found guilty or not guilty of the crime accused. If a bondsman is used and a surety bond has been obtained, the fee for that bond is the fee for the insurance policy purchased and is not refundable.
In some countries granting bail is common. Even in such countries, however, bail may not be offered by some courts under some circumstances; for instance, if the accused is considered likely not to appear for trial regardless of bail. Legislatures may also set out certain crimes to be not bailable, such as capital crimes.
Read more about Bail: Canada, Czech Republic, Scotland, United States