Someone arrested for certain traffic laws, except suspended license, no
proof of insurance, and any other offense for which a license may be
suspended on a first offense, may deposit his driver’s license in
lieu of bond.
OCGA § 17-6-11
If a person posts bond prior to a preliminary hearing and is later
bound over to another court, the original bond shall remain valid
unless increased (a decrease has no effect). This applies only when
bound over in the same county, but not where the person is bound
over to two or more courts.