bail

A security, bonds, or money deposited with the court to obtain the temporary release of an arrested person, on the assurance that the person will obey the court, as by attending a legal proceeding at a stated time and place. If the person does not attend, the bail may be forfeited.

While the US Constitution nominally guarantees individuals right to reasonable bail, in effect availability of bail and amounts of security necessary to secure bail are set by judges, based on judges' evaluations of the likelihood that a defendant will appear, or likelihood of further criminal acts or danger to the public, on the severity of the charge, and on the economic standing of the accused.