Turnbull will be asked to give evidence at $444m Great Barrier Reef grant inquiry

Former PM's decision to resign from parliament means he could be compelled to appear if he refuses invitation

Malcolm Turnbull will be asked to appear before an inquiry examining a $443.8m grant to the Great Barrier Reef Foundation.

The Senate inquiry's chair, Greens senator Peter Whish-Wilson, said on Thursday the committee had resolved to write to the former prime minister and request he give evidence at a future hearing.