Singaporeans who have voted will be familiar with the Group Representation Constituency. It is a system that aims to ensure minority representation in Parliament. But its introduction was not without reservations. Former Deputy Prime Minister Professor S Jayakumar says implementing the system was no easy task. It sparked intense debate before being passed into law in 1988. In the first of a four-part series on Singapore's unique laws, Nadirah Zaidi speaks with Professor Jayakumar about the challenges and debates behind the GRC system.