their rank insignia on their upper sleeves. When police tunics had closed collars (not open collars as worn with ties), constables and sergeants did not wear epaulettes but had their divisional call number on their collar (hence they are still often referred to as collar numbers). Sergeants wore their stripes on their upper sleeve. Inspectors and more senior ranks wore epaulettes at a much earlier stage, although they once wore their rank insignia on their collars. Most forces no longer use divisional call numbers, and retain only the collar number and rank insignia. Great Britain Senior officers usually wear distinguishing marks around the outer edge of the peaks of their caps (or under the capbadge for female officers, who do not wear peaked caps). Normally this is a raised black band for inspectors and chief inspectors, a silver (gold in the City of London Police) band for superintendents and chief superintendents, and a row of silver oak leaves for chief officers. Chief constables, the Commissioner of the City of London Police, and all commissioner ranks of the Metropolitan Police wear oakleaves on both the outer and inner edges of their peaks (or a double row beneath the capbadge for female officers). In Scotland, however, the mark is a silver band for inspectors and chief inspectors, a silver band and silver oakleaves on the outer and inner edges of the peak respectively for superintendents and chief superintendents, and silver oakleaves on the outer and inner edges of the peak for all chief officers. Additionally, officers at or above the rank of commander or assistant chief constable wear gorget patches on the collars of their tunics. The gorget patches are patterned after those worn by general officers of the British Army and Royal Marines; the police versions, however, are of silver on black (gold on black in the City of London Police) rather than gold on red, in keeping with the police uniform colours. The ranks below are used by all territorial forces in the United Kingdom, and the specialist national forces: the British Transport Police, Ministry of Defence Police, and Civil Nuclear Constabulary. Other specialist forces, and those outside of the United Kingdom (including British Overseas Territories such as Bermuda and Gibraltar, which are parts of the British sovereign territory in most of which internal competencies of governance are mostly delegated to local governments, and the Crown Dependencies of the Channel