Assistant commissioner

Assistant commissioner is a rank used in many police forces around the globe. It is also a rank used in revenue administrations (land, income tax, customs, inland etc.) in many countries.
Australia.
In all Australian police forces, assistant commissioner is the rank below deputy commissioner but senior to the rank of commander (South Australia Police, Victoria Police), senior to the rank of superintendent (Western Australia Police and NSW Police Force) and senior to the rank of chief superintendent (Queensland Police Service). In all services, the insignia consists of crossed and wreathed tipstaves; as a rank, it is roughly equivalent to that of a brigadier or major-general in the army.
Bangladesh.
In Bangladesh, Assistant Commissioner is the entry level post for some of the cadre services. It is a Grade-9 post. This rank is used in services like Administration, Taxation, Customs and Police. Assistant Commissioner is the entry level rank for the officers of Administration cadre. They play vital role in field administration. At first, they are posted at office of the Deputy Commissioner in Districts. As Executive Magistrates, they conduct mobile courts under the Mobile Court Act, 2009. The officers recruited in Taxation service through BCS exams start their career as Assistant Commissioner of Taxes (ACT). Entry level cadre officers of Police service, posted in metropolitan areas, are know as Assistant Commissioner of Police (ACP).
Canada.
The rank of assistant commissioner is used by one police agency:
Hong Kong.
Hong Kong Police Force have two ranks for assistant commissioner:
India.
In India, senior officers of the rank of assistant superintendent/assistant commissioner of police or above may belong to the national Indian Police Service or state police services, whereas Indian inspectors and constables belong to the individual provincial police forces. The rank of Assistant Commissioner is also used in Indian Income Tax, Customs, Central Excise and Service Tax Administration, as an officer of Indian Revenue
Pakistan.
In Pakistan, an assistant commissioner is a rank of the Revenue Administration, which is of two sub-types: Land Revenue, coming from two services; Provincial Management Service (PMS) and Pakistan Administrative Service (PAS), and Income Tax or Inland Revenue. The assistant commissioner of Land Revenue is an official appointed at the sub-district level, responsible for managing land records, revenue receipts related to land transfer, water cess, and crop cess etc. The Assistant Commissioner is also given magisterial powers in the capacity of sub-divisional magistrate (SDM) to settle disputes.
The CSS and PMS is an elite permanent bureaucratic authority and the civil service that is responsible for running the civilian bureaucratic operations and government secretariats and directorates of the Cabinet Secretariat. The civil service defines itself as "key wheels on which the entire engine of the state has to move." Derived from the colonial legacy of the former British Empire, the
Assistant Commissioner selection is made after passing the CSS or PMS exam and including one’s name in PAS or PMS group respectively.
Papua New Guinea.
In Papua New Guinea, assistant commissioner is the rank between chief superintendent and deputy commissioner.
Ireland.
In the "Garda Síochána", the Republic of Ireland's national police force, the rank of assistant commissioner is between chief superintendent and deputy commissioner.
New Zealand.
In the New Zealand Police, the rank of assistant commissioner is junior to the rank of deputy commissioner and is senior to the rank of superintendent. assistant commissioner is the top rank that can be achieved by a sworn member other than by statutory appointment. There are currently five assistant commissioners with separate areas of responsibility.
Singapore.
Staff Department heads or Directors of the Singapore Police Force are led by Assistant Commissioners.
United Kingdom.
Assistant commissioner of police of the metropolis (AC) is the third highest rank in the London Metropolitan Police, ranking between deputy assistant commissioner and deputy commissioner of police of the metropolis. The assistant commissioner is also the second-in-command of the City of London Police, ranking between commander and commissioner. The rank is not used in other British police forces, but is equivalent to chief constable.