We begin with the purpose of the MCA, which is to provide a statutory framework for permitting qualified persons to act and make decisions on behalf of adults who lack the mental capacity to make decisions for themselves. This framework was described in the second reading of the Mental Capacity Bill (Bill No 13/2008) as one for proxy decision making: see Singapore Parl Debates; Vol 85, Sitting No 1; Col 109; [15 September 2008] (Vivian Balakrishnan, Minister for Community Development, Youth and Sports). The MCA is based on the idea that all adults have the right to make their own decisions about their lives, including the decisions about their welfare, care, support, property, and personal affairs. Whenever possible, they should be helped and supported to make their own decisions. The MCA’s special provenance and features, and the implications as to its meaning gleaned from the provisions, show that the MCA operates and is applicable during the lifetime of the person who lacks mental capacity. To illustrate, s 4(1) of the MCA defines a person as lacking capacity “in relation to a matter if at the material time the person is unable to make a decision for himself or herself because of an impairment of, or a disturbance in the functioning of, the mind or brain”. The words “in relation to a matter” and “at the material time” make it clear that lack of capacity is both decision-specific and time-specific.