Title 19, Chapter 9, Section 48
(a) A party to a child custody proceeding, including a modification
proceeding, or a petitioner or respondent in a proceeding to enforce
or register a child custody determination is not subject to personal
jurisdiction in this state for another proceeding or purpose solely
by reason of having participated, or of having been physically
present for the purpose of participating, in the proceeding.
(b) A person who is subject to personal jurisdiction in this state
on a basis other than physical presence is not immune from service
of process in this state. A party present in this state who is
subject to the jurisdiction of another state is not immune from
service of process allowable under the laws of that state.
(c) The immunity granted by subsection (a) of this Code section does
not extend to civil litigation based on acts unrelated to the
participation in a proceeding under this article committed by an
individual while present in this state.