For example, broadly speaking, the ideas most frequently raised suggested that witnesses may be called:
where the concern is with accountability, and in those instances it may be that committees have little or no choice over who they are;
in a representative capacity, and here the Parliament’s ability to influence who they are may be somewhat limited;
because they have particular knowledge or expertise, and in these instances the numbers of potential witnesses may be larger or smaller depending on the topic;
to talk about their experiences, on both the delivery and the recipients’ side of legislation and policy, and in such cases the pool may often be bigger and there may be greater opportunities for selection.