Dr Tremaine Du Preez is a decision scientist, consultant and global educator. Tremaine explains her passion for bringing the largely separate themes of decision making and ethics together so that she can help leaders and their organisations understand what an ethical decision is. She tells me how relying on an organisations North Star and values will not be enough to navigate ethical dilemmas alone and what mistakes, best practice and trends she has spotted during her extensive Phd research and consultancy work.