In 2014 a resident was electrocuted in the shower at their home, a caretaker cottage near a small country NSW quarry operation. Safearth was selected by the NSW Mines Safety Regulator to perform a forensic engineering investigation into the nature and cause of the fatality. The findings were staggering with a number of contributing breakdowns, including incompetent electrical work, defeated safety controls and poor electrical maintenance. Ensuing from the fatality was a recently concluded landmark legal case including the first prosecution for a Category 1 offence under NSW WHS law. This case study presents a summary of the incident and investigation, mechanisms that led to the lethal scenario and lessons learned.