I'll start with the second question. Yes, it is still one of our recommendations.
Currently we can inform the public and parliamentarians only in the context of reports to Parliament, which are either annual reports or special reports. Otherwise we're bound by a confidentiality provision under the Privacy Act not to reveal our investigative activities. We continue with that recommendation.
On the question of whether we should legislate metadata, we have put on our website two research papers that seek to inform the public and others as to what metadata is. We have one on IP addresses and another on metadata more broadly, which is an operational, practical description of what metadata is.
Should it be legislated? I would have to give some serious thought to that because it's a difficult beast to define. If you're interested in this, we could get back to you on that point.
On the issue of metadata, I refer to the Spencer case. The Spencer decision of the Supreme Court in 2014 helped a lot in regulating what law enforcement can do with metadata in the context of investigations. There have been recommendations, discussions, or wishes expressed by law enforcement to perhaps change or nuance what the Supreme Court has said. Clearly, I would not be in favour of reducing the protection that comes from the Spencer decision, and if anything, if there was legislation to adopt on that point, my recommendation would be to codify and confirm the principles of Spencer. Would it be a good thing to define metadata? I'm less certain of that, but to confirm the principles of Spencer would be useful.