Rule 114 outlines the definition, purpose, and conditions of bail within criminal procedure, emphasizing it as a security for the release of a person in custody to ensure their appearance in court. It elaborates on the types of bail, technical requirements, and various stages of criminal proceedings, while also detailing the rights to bail and exceptions, such as for military personnel and capital offenses. The rule stipulates the duties of the trial court regarding bail applications, including hearings, and the circumstances under which bail may be denied, increased, or forfeited.