Barfoot is meticulous in his review of hazard analysis processes, preventive controls, and the subsequent verification processes. He looks to ensure all potential hazards are correctly identified and assessed, and that preventive measures are adequate to control such hazards. His inspections also focus heavily on any changes made that may require a revision of the existing Food Safety Plan.

FDA Auditor Rendall E Barfoot has a keen interest in details, particularly in the prevention and control of various hazards and contaminants in food products. He shows a tendency to assess the adequacy of preventive controls implemented by companies in relation to aflatoxins and salmonellas. His focus clearly revolves around hazard analysis, its completeness and correctness, and reassessment of food safety plans following significant changes.