B Attachment, Rule
Federal Rules of Civil Procedure Supplement Rules for certain admiralty and maritime claims: Rule B. It is an ancient prejudgment remedy originally enacted for the benefit of merchants in the maritime trade who had great difficulty getting paid. Without it, "[Defendants, D], their ships and their funds could easily evade the enforcement of substantive rights of admiralty law." - Aurora Maritime Co., 85 F. 3d at 48.
Purpose: A maritime attachment serves the dual purpose of obtaining the appearance of a foreign defendant and ensuring satisfaction of a favourable judgment - Swift & Co. Packers v. Compania Columbiana Del Caribe, S.A., 399 U. S. 684, 693 (1950).
3 elements need to attach: (i) a valid maritime claim against the defendant (D); (ii) D cannot be found within the jurisdiction; and (iii) D's property can be found within the jurisdiction.