Crown prosecutors will appeal against Brett Peter Cowan’s sentence, with Queensland’s attorney-general saying it does not set an adequate deterrent.

Queensland’s attorney-general will appeal against the “manifestly inadequate” sentence of the man who murdered Daniel Morcombe.

Serial pedophile Brett Peter Cowan, 44, was last week sentenced to life in prison with a non-parole period of 20 years for the murder of the 13-year-old Sunshine Coast boy in 2003.

Attorney-General Jarrod Bleijie says the non-parole period is manifestly inadequate, is not in line with community expectations and does not set an adequate deterrent.

Mr Bleijie has instructed Crown prosecutors to appeal against Cowan’s sentence after discussions with Daniel’s parents Bruce and Denise.

Daniel vanished while waiting for a bus at Woombye on the Sunshine Coast on December 7, 2003.

His remains were found in bushland at the Glass House Mountains in the Sunshine Coast hinterland in August and September, 2011.

Mr Bleijie commended Bruce and Denise Morcombe for their resolve.

“This government has taken a stand against serious sex offenders, the worst of the worst,” he told parliament.

“This government is determined to make this state the safest to raise a child.

“We will continue to reform laws to tip the scale back in the favour of victims.”

The government is currently reviewing its dangerous sex offender laws and new legislation is due mid-year.