Craig will fill in some of that. There are some key aspects.
The first complaint the special advocates had was that they didn't have enough resources. Imagine, if you're a lawyer, that you're given boxes and boxes of material. You can't discuss it with anyone; you can't bring your junior into the room, because you're the only person who has the security clearance. You have to go through all of these boxes and boxes of material to prepare your case, and you have no support. You can't even get your secretary to write a letter to the lawyer representing the government to ask for correspondence or whatever. You have to do this all yourself, and some lawyers aren't very good on.... So there is no support.
They've created something called the special advocates support office, which is an office made up of security-cleared lawyers whose function it is to assist the special advocates. That's the first thing.
The second change they made is that they now have two special advocates on all cases. There's a senior and a junior special advocate who are available on all of the cases.
They also made changes that required the government to include all exculpatory evidence, because there were concerns expressed by the special advocates that exculpatory evidence wasn't included.
The other matter—and then we'll see whether Craig can think of anything else—is that the rules were changed to expressly allow that the person who was the subject of the security certificate have a right to choose the counsel from the list, subject to objections by the government.
Have I missed anything?