Terrorism prevention and investigation measures bill

The hon. Lady says that we need to ensure that there are no unnecessary risks, and she says, fairly, that she and other Labour Members share the Minister's commitment to the security of the nation. But the Minister said that the period was necessary to ensure that effective arrangements were in place, and he believes that that period is 42 days. What evidence does the hon. Lady have that the period needs to be longer to ensure effective arrangements?