The court of appeal will review the jail terms given to a couple from Salford who trafficked a deaf girl into the country from Pakistan to work as their domestic servant.
Ilyas Ashar, 84, from Eccles sexually abused the youngster from the moment he trafficked her into the UK aged around 10 in June 2000. He was jailed for 13 years after being found guilty of rape and trafficking.
The girl was beaten and forced to sleep and work in the cellar of Ashar's five-bed family home in Cromwell Road, Eccles in Salford.
While Ashar used his victim to satisfy his sexual desires the girl was also used to steal more than £30,000 in benefits. His wife Tallat Ashar, 68 was jailed for 5 years after she was found guilty of trafficking and benefit fraud relating to the girl.
Solicitor General Oliver Herald referred the case of Ilyas and Tallat Ashar for possibly being too lenient.
Their victim, who had no family or friends in the UK and had never been to school in Pakistan or Britain, was taught by the Ashars to sign her name to claim benefits.
Their daughter, Faaiza Ashar, 46, was found guilty at an earlier trial of two counts of furnishing false information to obtain a benefit and one count of permitting furnishing of false information to obtain a benefit.