I'll try to do that and I'll look to my colleagues to support me here.
Just to be clear, the reference to temporary investigation was with respect to cancellation of passports. Cancellation is seen as to allow an investigation to continue. The person is given notice—or not, depending on the situation. The person has 30 days to apply for reconsideration of the decision. There is a reconsideration process. If on reconsideration the decision is upheld, then the person has 30 days to file an appeal with the Federal Court.
Essentially, cancellation could be a means to an end. If the investigation goes on and it is found that there are reasonable grounds not just to suspect but to believe that the person would be using the passport for terrorism purposes or purposes that could threaten national security, you could see that person's passport being revoked or refused.
Essentially, if cancellation takes you to a higher threshold, there is more evidence that can be used. There is a continuum that could end up leading to denial of passport services for up to 10 years.