Showing likely irreparable harm is a requirement for any preliminary injunction. A preliminary injunction is an extraordinary remedy issued before a case is hea

Showing likely irreparable harm is a requirement for any preliminary injunction. A preliminary injunction is an extraordinary remedy issued before a case is heard and decided, in order to prevent ongoing harm during the course of the case. When there is no likelihood of irreparable harm, courts are not supposed to issue a preliminary injunction before hearing the case. In that situation, the court can afford to wait for the full case to be heard, with a proper evidential record, etc., before making any decisions.