Officers identified prisoners who were then provided by researchers with a verbal explanation of the survey (in English or French, and translated into Bemba, Nyanja or Tonga if necessary), asked if they were willing to partici- pate, and assured of anonymity. Individuals were assured that they ...
(d) monitoring the transmission path for the presence of destination code signals, (e) comparing said destination code signals with one or a plurality of predetermined destination code signals, and (f) disconnecting the communication toll facility from utilization by the subscriber in the event of ...