Definition - What does Ex Parte mean?
Ex parte is a Latin term that means "from one party." In the context of civil procedures, ex parte is used to refer to legal proceedings that are brought by a party and are usually conducted in the absence of or without notification to the other party(s) involved. In some jurisdictions, ex parte may refer to contact with an arbitrator, judge, or represented party without properly notifying other involved parties.
Justipedia explains Ex Parte
The Fifth Amendment to the U.S. Constitution states that a person must not be deprived of liberty, life, or property without the due process of law. Properly notifying parties that might be affected by a legal proceeding is an important aspect of due process, and since ex parte legal proceedings violate this, they might appear to be unconstitutional. To rectify this, ex parte decisions are given on a temporary basis (i.e. They are immediately followed by a full hearing between the concerned parties in a case.).