I am referring specifically to Maryland's Ex Parte' Petitions. (TPO aka Temporary Protective Orders).
THose are heard in CIVIL court in the state of Maryland. NOT criminal court.
Petitioner obtains an Ex Parte' Protective Order from a magistrate or judge. The Ex Parte is considered a "DV" case in the state of Maryland. The case even gets a "red jacket" which is the label for DV cases.
7 days later an emergency hearing is held where the petitioner (and defendant) appear in front of a judge where the petitioner has to prove what was stated in the petition. If the petitioner does not prove his/her allegations contained in the petition, then the case is dismissed.
BUT...an online judicial case search still shows the Defendant as having been a "defendant" in a domestic violence case in public court records. And since it's a civil matter, there is NO expungement process available. He/she is FOREVER..listed as a Defendant in a Domestic Violence case.
This link explains that the Ex Parte is part of Marylands Domestic Violence laws:
http://www.mnadv.org/dv_laws.html
Domestic Violence - Temporary Ex Parte and Ex Parte Order - Provides a slight extension in the number of days allowed to serve the Civil Order of Protection and continue the coverage provided by an ex part