Federal Judge Sides with Signal - Denies Class Certification of all former H2B worker claims. Signal International L.L.C., a leading Gulf of Mexico provider of marine and fabrication services headquartered in Mobile, Alabama received news of a complete victory in the case pending in the Eastern District of Louisiana with regard to class certification of claims against it alleging human trafficking, slave labor and fraud, among other claims. In denying class certification, United States District Judge Jay C. Zainey, observed with regard to the allegations made against Signal, “[t]o the contrary, this case involves paid workers who in fact could leave their jobs at any time, albeit under penalty of returning to their home countries but that restriction was dictated by U.S. immigration law.