

Officers are usually responsible for around 30 people at the most junior levels of command, up to hundreds of thousands at the highest levels. Their authority to command is vested in them by the head of state, in Australia's case the sovereign, and this authority is known as their commission. Those with commissioned rank are known as officers. In Australia a warrant is issued under the authority of the Defence Act of 1903.Īll personnel up to and including warrant officers are known collectively as other ranks. In 1879 the British Army introduced a permanent warrant to define the authority of its most senior NCOs and these soldiers become known as warrant officers. When originally instituted, sometime prior to the 1800s, officers could issue warrants to selected personnel to help them carry out their tasks once these duties were fulfilled the warrant was withdrawn. Their authority is derived from the warrant that they hold. Those with warrant rank are known collectively as warrant officers and within a military organisation are generally responsible for the maintenance of discipline. An NCO's authority to command is vested in them by their commanding officer as a representative of the commander of their service, as opposed to an officer, whose authority derives from a commission from the head of state. They are responsible for small groups of people, usually numbering no more than about 15, but a platoon sergeant or equivalent is responsible for the discipline of 30 to 40 soldiers. Non-commissioned officers (NCOs) form the largest rank group in the armed forces. These personnel are known as the "rank and file" by virtue of the fact that on parade they fill out the ranks and files.

Officially this person is responsible for no one but themselves but practically they are responsible for their mates as well. On enlistment into the armed forces a person usually has no rank.
