To obtain a preliminary injunction, courts have generally required that the moving party demonstrate some or all of the following: a substantial likelihood that it will prevail on the merits of its case; that it will suffer irreparable injury if preliminary relief is not granted; that the threatened injury to it outweighs the harm an injunction might cause the defendant; and that the preliminary injunction will not have a serious adverse effect on the public.
A temporary restraining order (TRO) may be granted by a court where it clearly appears from specific facts shown by an affidavit or by a verified complaint that immediate and irreparable injury will result before the adverse party or his attorney can be heard in opposition, and the complainant’s attorney has certified to the court, in writing, the efforts which have been made to give notice and the reasons supporting his claim that notice should not be required. See Rule 65, Federal Rules of Civil Procedure.
