S Tiwari was the first and only Lead Researcher for ASEAN-related Legal Affairs from January 2009 to July 2010. Before joining ISEAS as a Visiting Senior Research Fellow, he served in various senior capacities in the Singapore Legal Service, most recently as the Head of the International Affairs Division at Singapore’s Attorney-General’s Chambers. During his Legal Service stint, he was extensively involved in many aspects of ASEAN-related legal work, including negotiating, advising and drafting key trade, investment and dispute-related instruments. He edited the book “ASEAN:Life After the Charter” published by ISEAS in May 2010. Sadly, Mr Tiwari passed away unexpectedly on 26 July 2010.