How did robodebt collect debts unlawfully for five years?

Hearings into the royal commission into robodebt have just wrapped up. Over many months, the commission heard from public servants, politicians and people affected by the scheme and a picture began to form of how the program continued for so long when so many concerns were raised. Social affairs and inequality editor Luke Henriques-Gomes speaks to Jane Lee about the key moments in the royal commission and why robodebt was allowed to go on for so long, despite repeated warnings of legal and ethical concerns