Inter partes
In law, inter partes (Law Latin for 'between the parties') is a legal term that can be distinguished from in rem, which refers to a legal action whose jurisdiction is based on the control of property, or ex parte, which refers to a legal action that is by a single party. Lawsuits (or actions in executive agencies) in which all interested parties have been served with adequate notices and are given a reasonable opportunity to attend and to be heard are referred to as inter partes proceedings or hearings.