DNA on bones match Daniel's mum's: court

The lawyer for the man accused of killing Daniel Morcombe says there is so much material to sift through a trial would take months rather than weeks.

On the third day of the committal hearing for accused murderer Brett Peter Cowan, forensic experts gave evidence on human remains believed to be those of Daniel.

Outside the Brisbane Magistrates Court, Cowan's defence lawyer Michael Bosscher said if the matter reached trial it would likely run for months.

"To say it was a massive task would be a significant understatement," he told reporters.

"There's a huge brief of evidence.

"The material examined in this committal proceeding would represent less than one per cent of all material which has been obtained."

Much of Mr Bosscher's cross examination so far has centred on what precautions expert witnesses took when examining the remains.

"The type of DNA evidence that they've obtained in this particular matter is much, much more susceptible to potential contamination.

"That doesn't mean that there has been, but it's an area that has to be examined."

Daniel's parents Bruce and Denise say they're taking each day of the hearing as it comes.

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DNA on bones match Daniel's mum's: court