That said, it would be very wise of the current FM not to say anything about this. Even "I have full confidence in Peter Murrell" might be unwise because a) it might be seen as trying to influence the investigation and b) Murrell might be guilty and then Humza Yousaf would look a bit stupid.
Indeed, but these are political rather than legal judgement I think.
I suspect Yousaf will be asked the following questions in the coming days (as the newspapers are already posing them):
1. When and how much did your predecessor know about the situation?
2. Was your predecessor's decision to resign linked to these issues?
3. Did the SNP accelerate the leadership contest timeline because they were concerned about these issues?
4. Did the police delay yesterday's actions to avoid acting during the election campaign?
Clearly the newspapers (and others) don't think posing these questions falls foul of contempt as they are all over today's papers.
Now truthfully Yousaf's answer might be 'I don't know', but I suspect his response will use the smokescreen of contempt - something like 'I cannot comment on anything related to the active investigation'.
Yousaf's priority will be to detach himself as far as possible from the investigation and hiding behind contempt allowing him 'no comment' answers is the best approach. But this will largely be driven by the politics, not the legality.