Just a quick google, comes up with this wiki page.
http://en.wikipedia.org/wiki/List_of...e_line_of_duty
Remembering that it's a wiki page so don't expect to be 100% accurate, but good enough for this forum.
Since 1900, amongst other causes:
approx 24 police have been killed by being stabbed
Approx 71 police have been killed by being shot (not including PSNI)
and approx 21 have been killed in police car pursuits.
so in 112 years 96 police have been shot or stabbed.
If you look at this site:
http://www.citizensreportuk.org/repo...-firearms.html
From 2005 the police have shot and killed 20 civillians, and of those 20 civillians 8 either had no weapon on them or had an imitation weapon.
Not such a good strike rate.
and that's only the last 7 years.