The Victorian director of public prosecutions will appeal against the sentence handed down to triple murderer Erin Patterson, arguing it is manifestly inadequate.

On Monday afternoon – the deadline for an appeal – the DPP confirmed in a statement that the appeal had been lodged, after Patterson was sentenced to life imprisonment with a non-parole period of 33 years.

“We confirm that a DPP appeal has been filed on the basis that the sentence handed down to Erin Patterson is manifestly inadequate,” a spokesperson said.

Patterson was sentenced on 8 September over the murders of Don and Gail Patterson and Heather Wilkinson, and the attempted murder of the latter’s husband, Ian Wilkinson.

Sign up: AU Breaking News email

The Pattersons were the parents of her estranged husband, Simon Patt

See Full Page