Labor Senators on a committee examining controversial migration legislation have reportedly raised concerns about the sweeping nature of the powers it would grant the Immigration Minister if passed.

Independent Senator David Pocock says this third time the government has dropped urgent immigration legislation and attempted to ram it through the parliament. With regards to the current legislation Senator Pocock says he's "already circulated a number of amendments" but says it's still unclear why this legislation was so urgent, and whether it will actually be effective.

Guest: David Pocock, Independent Senator