My daughter's school is right near there so I am familiar with their presence. The reason you see them around is the nearby Lycée Français Charles De Gaulle and

My daughter's school is right near there so I am familiar with their presence. The reason you see them around is the nearby Lycée Français Charles De Gaulle and a few embassies like Yemen, Venezuela, etc. They are not there often, and usually only when there is terrorist activity in France.