Chief superintendent is a senior rank in police forces, specially in those organised on the British model.
Portuguese Public Security Police
UK Police Chief Superintendant Epaulette
In Australia, a chief superintendent is senior to the rank of superintendent in all the Australian police forces excepting the Western Australia Police, where the rank of assistant commissioner is used in the place of chief superintendent; it is junior to the rank of commander (Victoria Police, South Australia Police) and the rank of assistant commissioner (New South Wales Police, Queensland Police). Officers wear the insignia of a crown over two Bath Stars (or in the case of the New South Wales Police, a crown over two stars) the same as a Colonel in the army.
In the Royal Canadian Mounted Police, a chief superintendent wears two stars below a crown, equivalent to a Colonel.
In the Hong Kong Police Force, a chief superintendent of police (CSP) ranks between a senior superintendent (SSP) and an assistant commissioner of police (ACP). A CSP is usually a district commander (DC) or a branch/bureau commander (e.g. Narcotics Bureau). The commandant of the police tactical unit is also a CSP.
In the Garda Síochána, the Republic of Ireland's national police force, the rank of chief superintendent is between superintendent and assistant commissioner. Chief superintendents usually command divisions, while detective chief superintendents head the various investigative branches. The rank marking is two red / gold pips over a red / gold bar.