Rule 22 is known as rule interpleader. It corresponds to the process of interpleader in English law. Rule deals with funds deposited in court, such as in interpleader actions. Chafee was also an authority on equity, interpleader, negotiable instruments, and unfair business competition. There are two specific types of interpleader actions in the United States federal courts. The insurance company can file an interpleader action. In such an event, an interpleader may be the most appropriate course of action. A defendant exposed to similar liability may also seek interpleader. Interpleader is also allowed by the Federal Rules of Civil Procedure . A defendant exposed to similar liability may seek interpleader through a crossclaim or counterclaim.