Caernarvonshire Constabulary (1857 - 1950)
Cardiff County Borough Police (1836 - 1905)
Cardiff City Police ( 1905 - 1969)
Cardiff Railway Police (1897 - 1922)
Cardiganshire Constabulary (1844 - 1958)
Carmarthenshire Constabulary
Carmarthenshire and Cardiganshire Constabulary
Carmarthen Borough Police
Denbigh Borough Police ( ? -1858)
Denbighshire Constabulary
Cambrian Railway Police (1867 – 1923)
Dyfed Powys Constabulary
Festiniog Railway Police (1884)
Flint Borough Police
Flintshire
Constabulary
Glamorganshire Canal Police
(1851 - 1880)
Glamorgan Constabulary
Great Western Railway Police (1835-1947)
Gwent Constabulary
Gwynedd Constaulary
Haverfordwest
Borough Police (1833 - 1889)
Llynfi Railway Company Police 1852 -
Merionethshire Constabulary
Midland Railway Police (1876 - 1922)
Milford Docks Police (1874 -
Ministry
of Defence Police
Montgomeryshire Constabulary
Merthyr Tydfil County Borough Police
Metropolitan Police (Pembroke Royal Dockyard
Division)
Mid-Wales Constabulary
Monmouth Borough Police
Monmouthshire Canal Police
Monmouthshire Constabulary
Montgomeryshire Constabulary
Neath Borough Police
Neath Canal Navigation Company Police (c.1860)
Newport County Borough Police
Newport Harbour Police
North Wales Police
Penarth
Docks Police
Pembroke Borough Police
Pembrokeshire Constabulary
Pembroke & Tenby Railway Police (1859 - 1897
Port Talbot Railway & Dock Police
(1894 - 1922)
Pontypool Town
& Trevethin Parish Police (1830 - 1860)
Pwllheli
Borough Police
Radnorshire Constabulary
Rhymney Railway Police ( 1854 - 1922)
Radnorshire Constabulary
Swansea County Borough Police
Swansea Canal Police (1841
)
Swansea Harbour Trust Police (? - 1922)
South Wales Constabulary
South Wales Railway Police (1845 - 1863)
Taff Vale Railway Police
(1836 - 1922)
Tenby Borough Police
Vale of Neath Railway Police
War Department Constabulary