The question does take me somewhat out of the subject of the 2006 human rights report, but insofar as your question asks whether I have observed a pattern under which information about Afghanistan and/or detainees is not easily available, my answer would be yes.
I have another access to information request pending with CIDA, about international development projects it's undertaking in Afghanistan. That request has been pending for 11 months and is not completely answered. I have numerous other requests that are out of time as well.
It has certainly been the case that in the last few months the civil servants responsible for access to information have become very much less willing than they were in the past either to discuss the progress of files or to release documents. I can't tell you exactly how many because I don't know off the top of my head, but I have several complaints pending with the Information Commissioner on the subject of Afghanistan right now.
There is a systematic problem getting information out on Afghanistan. It is subject to the most extraordinary delays and, I believe, illegal withholdings.