who helps the minister to form a decision
Minister (government) A minister is a politician who holds public office in a national or regional government, making and implementing decisions on policies in conjunction with the other ministers. In some jurisdictions the head of government is also a minister and is designated the "prime minister", "premier", "chief minister", "Chancellor" or other title.
Prime Minister of Canada Because the prime minister is, in practice, the most politically powerful member of the Canadian government, he or she is sometimes erroneously referred to as Canada's head of state,[n 2] when, in fact, that post is held by the Canadian monarch, represented by the governor general.[16] The prime minister is, instead, the head of government and is responsible for advising the Crown on how to exercise the Royal Prerogative and its executive powers,[3] which are governed by the constitution and its conventions. However, the function of the prime minister has evolved with increasing power. Today, as per the doctrines of constitutional monarchy, the advice given by the prime minister is ordinarily binding, meaning the prime minister effectively carries out those duties ascribed to the sovereign or governor general, leaving the latter to act in predominantly ceremonial fashions.[17] As such, the prime minister, supported by the Office of the Prime Minister (PMO), controls the appointments of many key figures in Canada's system of governance, including the governor general, the Cabinet, justices of the Supreme Court, senators, heads of crown corporations, ambassadors to foreign countries, the provincial lieutenant governors, and approximately 3,100 other positions. Further, the prime minister plays a prominent role in the legislative process—with the majority of bills put before parliament originating in the Cabinet—and the leadership of the Canadian Armed Forces.