In that situation, if I had been in my role as chief of staff of the Prime Minister and information or allegations were brought to me, I would have acted exactly the same. I would have immediately conveyed that information to either the national security adviser or the Clerk of the Privy Council and requested an immediate investigation, because that is how the system is structured. It is the reason senior officials are there.
I think it's the responsibility of the political level of government to ensure that information is passed to them, that investigations are undertaken and, if decisions are required, that they be taken subsequently.