However while the plan may sound sensible, many had criticised it for helping jihadist networks grow.
In July a critical reportuggested this isolated prison wings option was not the best solution.
The report by France’s chief prison inspector Adeline Hazan said France’s justice system was facing a phenomenon “which it had no measure of the nature or extent of”.
Her report stressed that grouping Islamist extremist prisoners together continues to worry counter-terrorist judges because of the harmful impacts which include “allowing solidarity to build between prisoners, networks to be reconstructed and allow the more influential inmates to put pressure on the most vulnerable.”
The rehabilitation programme was brought in by Prime Minister Manuel Valls after it emerged that two of the gunmen in the January 2015 terror attacks in Paris had been radicalized in French prisons.
“It must become a general measure but it must be done with discernment and intelligence,” the PM added.