Senior corrections officer revealed as second man in child exploitation case involving SA Labor staffer MonMonday 12 updated TueTuesday 13 Benjamin Waters was arrested following an investigation by SA Police and the AFP. ( Print text only Cancel The identity of a second South Australian man allegedly involved in producing and possessing child exploitation material has been revealed. Key points: He appeared in court last month, but lawyers asked that his identity be suppressed His co-accused is former SA Labor staffer Benjamin Waters Senior correctional services officer Stewart Iain Berry can now be named, after he abandoned a Supreme Court appeal to keep his identity suppressed.