Ministerial responsibility

Individual ministerial responsibility is a constitutional convention in governments using the Westminster System that a cabinet minister bears the ultimate responsibility for the actions of their ministry or department. Individual ministerial responsibility is not the same as cabinet collective responsibility, which states members of the cabinet must approve publicly of its collective decisions or resign. This means that a motion for a vote of "no confidence" is not in order should the actions of an organ of government fail in the proper discharge of their responsibilities. Where there is ministerial responsibility, the accountable minister is expected to take the blame and ultimately resign, but the majority or coalition within parliament of which the minister is part, is not held to be answerable for that minister's failure.

This means that if waste, corruption, or any other misbehaviour is found to have occurred within a ministry, the minister is responsible even if the minister had no knowledge of the actions. A minister is ultimately responsible for all actions by a ministry because, even without knowledge of an infraction by subordinates, the minister approved the hiring and continued employment of those civil servants. If misdeeds are found to have occurred in a ministry, the minister is expected to resign. It is also possible for a minister to face criminal charges for malfeasance under their watch.

The principle is considered essential, as it is seen to guarantee that an elected official is answerable for every single government decision. It is also important to motivate ministers to closely scrutinize the activities within their departments. One rule coming from this principle is that each cabinet member answers for their own ministry in parliament's question time. The reverse of ministerial responsibility is that civil servants are not supposed to take credit for the successes of their department, allowing the government to claim them.

In recent years some commentators have argued the notion of ministerial responsibility has been eroded in many Commonwealth countries. As the doctrine is a constitutional convention, there is no formal mechanism for enforcing the rule. Today ministers frequently use ignorance of misbehaviour as an argument for lack of culpability. While opposition parties rarely accept this argument, the electorate is often more accepting. In most other Commonwealth countries such cases are today hardly ever brought to trial.

...
Wikipedia