Former Liberal minister Alan Tudge has denied he was responsible for checking whether or not the robodebt scheme was legal.
Mr Tudge, who was human services minister between 2016 and 2017, told the royal commission into the Centrelink debt recovery scheme that while he was in charge of department matters, it was not his responsibility to ascertain whether the program was legal.
However, he said he was responsible for robodebt's "lawful implementation".
