Credit: Rachelmarie/Pixabay File photo A long-standing loophole in workers’ compensation policy shifted “substantial” costs onto New Jersey’s already strained public employee pension system, according to a new report from a top state financial watchdog. A precise estimate of the financial impact could not be determined, but the findings released on Thursday by the Office of the State Comptroller suggest insurance companies benefited the most from the loophole. At the same time, the report determined the loophole effectively shifted more costs onto the pension system, which as of last year, was operating with a nearly $130 billion unfunded liability, according to estimates disclosed in recent state bond documents.