Kev, do French policemen carry guns?
Yes, they do at all levels. We have at the lowest level the Police Municipale who have jurisdiction only within town limits and basically are there to direct traffic, give out parking tickets and patrol the town at night. They have firearms (although it is rumoured in smaller towns they get no ammo) as well as cuffs and I think CS Gas.
(The officer killed yesterday was with the Police Municipal for only 15 days - a very soft target).
On a national level we have the Police Nationale and the Gendarmerie and they have firearms, tazers, night sticks and the rest. There are then a multitude of special police services such as CRS, BRI, RAID and the GIGN. These forces approach the level of paramilitary units, having every firearm you can think of, as well as gas, stun grenades, their own air cover etc etc
As Maurice mentioned earlier, when the GIGN go in they go in in hard, and it is usually their opponent who comes off second best. They demonstrated that twice today.
You will also see on French roads patrols of the "Douanes" the customs folk checking for smuggling especially of contraband, esp drugs. They have guns too !
Kev