Some harms cannot wait for a trial. This post explains how a preliminary injunction in New Jersey actually works: the difference between temporary restraints under R. 4:52-1 and an interlocutory injunction, the four Crowe v. De Gioia factors a judge applies, why irreparable harm defeats most applications, what you file and how fast it moves, and how to defend against an order to show cause. Practical guidance from the Law Offices of Peter J. Lamont.