The British Government has announced plans to end the automatic 50% remission on prison sentences imposed by the courts in the North.
At present, all prisoners are eligible for release after serving only half of their sentence.
However, under new sentencing measures proposed today, the most dangerous sexual and violent offenders could be detained for the full term of their sentence.
Post-release supervision would also be compulsory for all prisoners.
The changes are being announced just a day after the Chief Inspector of Criminal Justice said the 50% remission for dangerous offenders left the public at risk.