Her comments came a day after she called on the justice system to intensify the fight against radicalism in France's prisons.
“Radical prisoners and those convicted of terrorism must be isolated," she said. "The fight against radicalization and proselytism in prison is a major issue."
According to data from France's Ministry of Justice, there are currently 152 terrorism convicts in French prisons.
Taubira also urged prosecutors to act firmly and quickly against anyone suspected of terrorism.
"We take this matter very seriously and we will continue to act," Taubira added.
Keeping prisoners in isolation cells permanently can be seen as a violation of human rights, according to the European Committee for the Prevention of Torture.
The French government has been mobilized in recent days in the fight against terrorism after two deadly attacks in recent days left 17 people dead.