Viviane Reding, the EU's fundamental rights commissioner, told the EUobserver lawyers are in the process of examining the deportation situation regarding the Roma.
"We can't just go there and declare war on a member state," Reding said.
Paris received a letter from Reding on Tuesday in which she criticizes the fact that France failed to completely transpose into national law the 2004 EU directive on freedom of movement.
Reding said a special task force on the Roma issue will be set up within the EU commission to monitor the way member states are using funds to better integrate gypsies into their society.
Currently 12 of the 27 member states have support programs targeting Roma.