Labour's Yvette Cooper: Slavery Bill a 'missed opportunity'
16 December 2013 Last updated at 16:37 GMT
Life sentences will be brought in as part of a package of measures being proposed by Home Secretary Theresa May to tackle human trafficking.
The draft Modern Slavery Bill aims to increase the maximum custodial sentence for offenders from 14 years to life.
Shadow Home Secretary Yvette Cooper has welcomed the government's efforts, but said she wanted to see legal protection for child victims.
''We are urging the government to go further,'' she said.