If both the person posting bail and the defendant are in court, cash bail can be posted in the courthouse, and the defendant can be released before being transferred to jail.
reference point - an indicator that orients you generally; it is used as a reference for comparing the heating and the electrical energy involved. point of reference, reference. bench mark, benchmark - a surveyor's mark on a permanent object of predetermined position and elevation used as a reference point. landmark - a mark showing the boundary of a piece of land.
A reference datum (mathematical model) is a known and constant surface which is used to describe the location of unknown points on the earth. Since reference datums can have different radii and different center points, a specific point on the earth can have substantially different coordinates depending on the datum used to make the measurement.