Police Constable
	Sergeant
	Inspector
	Chief Inspector
	Superintendent
	Chief Superintendent
	Assistant Chief Constable
	Deputy Chief Constable
	Chief Constable

Every police officer in the United Kingdom is issued with a warrant number at their date of joining. This warrant number remains with them throughout their career and is visible on their shoulder epaulette up to and including the rank of sergeant.

Warrant numbers are not national, therefore there will be more than one "PC 123" in the United Kingdom.

Divisional Warrant Numbers
Larger forces such as the Metropolitan Police also assign a divisional warrant number to officers, these divisional warrant numbers have a divisional prefix consisting of one or two letters. This is due to the large number of officers in that force, With over 20,000 officers it would get silly displaying 12,578 on your shoulder!