Nicholas William Leeson (born 25 February 1967) is an English former derivatives trader whose fraudulent, unauthorised and speculative trades resulted in the 1995 collapse of Barings Bank, the United Kingdom's oldest merchant bank. Leeson was convicted of financial crime in a Singapore court and served over four years in Changi Prison. Between 2005 and 2011, Leeson had senior management roles at League of Ireland club Galway United. After it suffered financial difficulties, he resigned from his position as chief executive officer. He is also active on the keynote and after-dinner speaking circuit, where he advises companies about risk and corporate responsibility. Leeson is currently a corporate firm private investigator in charge of dealing with cases of financial misconduct. He resides in Galway as of 2023. Source: Wikipedia (en)