Thanks for your question John
There are no rules in the Australian parliament which tell MPs how much time they have to research a bill before they can introduce it to parliament, or how long they must spend researching a bill that is already in parliament. Most bills are introduced by ministers who are in charge of a government department such as the Department of Defence, Department of Health or Treasury. The department would spend as much time as they needed to assist the minister to research and prepare a bill.
Members of parliament usually discuss how much time they spend on a bill, depending on how complicated, urgent or controversial the bill might be. Parliament often spends weeks or even months when considering whether to pass a bill. However, an urgent bill can be passed in a matter of days.