A Canadian mother has been found guilty of concealing the decomposing remains of her six babies in a storage locker.

Andrea Giesbrecht, 42, was charged with six counts of concealing the body of a child in October, 2014.

Staff at a storage company discovered bodies in her locker after she fell behind on payments.

Police then found the remains of five boys and a girl, at gestational ages ranging between 34 and 40 weeks, in garbage bags, plastic bins and pails, along with children's toys and clothing.

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All were too badly decomposed to determine a cause of death but the Judge accepted experts' testimony that the babies were likely born alive.

The remains of all six infants were linked to Giesbrecht and her husband through DNA evidence.

Giesbrecht's defence lawyers argued that she was not concealing the remains, but saving them.

Each charge carries a maximum penalty of two years in jail.

- AAP