and male;
Whetu Tirikatene-Sullivan (seated second-left from the centre) was the only female Cabinet minister. The lack of formal legislation establishing Cabinet leaves the
powers of its members only loosely defined. Cabinet generally directs and controls policy (releasing
government policy statements), and is
responsible to the House of Representatives, the elected component of Parliament. It also has significant influence over law-making, and all draft
government bills must be submitted to the
Cabinet Legislation Committee before they can be introduced to the House. Convention regarding Cabinet's authority has considerable force, and generally proves strong enough to bind its participants. Theoretically, each minister operates independently, having received a ministerial
warrant over a certain field from
the Crown. But the governor-general can dismiss a minister at any time, conventionally on the advice of the prime minister, so ministers are largely obliged to work within a certain framework. Collective responsibility is grounded in three key principles. The first principle is
unanimity, where members of Cabinet must publicly support decisions and defend them in public, regardless of any personal views on the matter. Secondly, the confidentiality limb means that all Cabinet discussions are to be kept confidential. Formally all ministers are equals and may not command or be commanded by a fellow minister. Constitutional practice does, however, dictate that the prime minister is
primus inter pares, meaning 'first among equals'. Problems arise when the prime minister breaches collective responsibility. Since ministerial appointments and dismissals are in practice in the hands of the prime minister, Cabinet can not directly initiate any action against a prime minister who openly disagrees with their government's policy. On the other hand, a prime minister who tries to act against concerted opposition from their Cabinet risks losing the confidence of their party colleagues. An example is former Prime Minister
David Lange, who publicly spoke against a tax reform package which was sponsored by then-
Finance Minister Roger Douglas and supported by Cabinet. Douglas was forced to resign, but when the Cabinet supported Douglas against Lange, the Prime Minister interpreted this as a vote of no-confidence in his leadership and stepped down.
Collective responsibility after MMP Some political commentators, such as Professor Philip Joseph, have argued that it is a misnomer to deem the unanimity principle of collective responsibility a constitutional convention as such. Joseph views unanimity as merely a "rule of pragmatic politics", lacking a sufficient constitutional nature to be deemed a constitutional convention. He states that, unlike a convention, governments may waive, suspend or abandon political rules, Following the 2011 general election the National-led government released the following statement in regards to the role of minor parties in the context of collective responsibility: Collective responsibility applies differently in the case of support party Ministers. Support party Ministers are only bound by collective responsibility in relation to their own respective portfolios (including any specific delegated responsibilities). When support party Ministers speak about the issues in their portfolios, they speak for the government and as part of the government. When the government takes decisions within their portfolios, they must support those decisions, regardless of their personal views and whether or not they were at the meeting concerned. When support party Ministers speak about matters outside their portfolios, they may speak as political party leaders or members of Parliament rather than as Ministers, and do not necessarily support the government position. Ministers outside Cabinet retain
individual ministerial responsibility for the actions of their department (in common with Cabinet ministers). == Electoral reform and Cabinet structure ==