Just catching up with the thread. Seen this which contradicts the figures I had in mind.
herberts wrote:While Muslims comprise only 10% of France's population they even so account for '50-70% of prisoners in French jails'
A quick check leads to this:
"Pourtant, au 1er juillet 2003, 12 231 étrangers étaient incarcérés. Ils représentent ainsi 21,4% de la population carcérale, bien au-delà de leur représentation dans l'ensemble de la société française [1]."
Prisons
This mean that only 21.4% of the prisoners in French jails were foreigners.
One can imagine the percentage of Muslims.
But now, the nitpickers will tell us that the prisoners are "French" Muslims...
Let's get back to the right track..