Section 4(3) of the Act provides that where the court, in exceptional cases, considers it necessary or expedient in the interests of justice, an interim barring order may be made ex parte or notwithstanding the fact that the originating document or other notice of the application required to be duly served on the respondent to the application has not been so served. The words "ex parte"signify that the order has been made in the absence of, and without notice to, the other party.