UK Markets for Public Safety: EMS/Fire/Police.  This would include
the number of policemen, the number of police departments, the
structure/relationship of those departments; the number of firemen,
the number of fire departments, the structure/relationships of those
departments; the number of emergency medical services/ambulance
services, personnel and relationships. For example, there are over
17,000 police departments in the US, etc

POLICE

There are 43 police forces in England and Wales, and 8 in Scotland,
which are linked from
http://www.police.uk/forces/default.asp

The largest police force in the UK is the (London) Metropolitan, with
30,235 officers, 11,966 police staff, 493 traffic wardens and 1392
Police Community Support Officers (PCSOs), and, since the realignment
of police boundaries in April 2000, it covers an area of 620 square
miles and a population of 7.2million.

There is a list of branches of the Met at
http://www.met.police.uk/about/branches/

Smaller forces will have a similar structure but with some departments amalgamated.

There are some specialist non-geographic forces, which are linked from
http://www.police.uk/forces/nongeo.asp

There are also Port, Waterways, and Tunnel police, various Military
police, Royal Parks Constabulary and other parks police.
http://www.centrex.police.uk/business/stats.html

Each force has autonomy in its area but works together through the
Associations of CHief Police Officers (ACPO) - also linked from that
site.

FIRE

Each area has its fire brigade. They are linked from
http://www.london-fire.gov.uk/about_this_site/useful_links_UKfirebrigades.asp

Contact addresses and phone numbers are listed on
http://www.fireservice.co.uk/information/offcontacts.php

AMBULANCE 

Ambulance services are run through the National Health Service (NHS)
and uses its procurement mechanisms. There are 34 Trusts in England,
Wales and Northern Ireland, links to many NHS Ambulance Trusts from
http://www.asu.org.uk/relatedlinks.html

The Scottish Ambulance Service is at
http://www.scottishambulance.com/
and covers the largest geographical area of the UK

can you refine/define "forces" pls? thanks

I gathered enough from your links, go ahead and file your comment as
an answer please so that you can get paid!

I'm not a researcher, I do this for fun. You got a freebie!

Owain

lol -- thanks -- um... how 'bout my other questions? ;-p