wisconsin police arrested private investigator dwayne powell in 2013 who claimed he was hired by church of scientology to spy on ron miscavige .
david miscavige 's 79-year-old father had left the church a couple of years ago .
powell reportedly told police his job was to track miscavige 's movements , read his emails and listen in on his conversations .
david miscavige allegedly prohibited the private investigator from helping his father during a medical emergency .
church of scientology and david miscavige 's attorneys vehemently denied powell 's claims .