Okay.
If I understand correctly, senior scientists concealed their activities. You've put policies in place to protect you and the Canadian public. When you noticed something, you took action.
It seems to me that it was quite a while before you noticed anything, and people were able to do things that weren't appropriate.
I understand that you took action when you finally noticed the red light, but before that, were there people who were incompetent in the face of this situation? Did you take it too much for granted that everyone was good, that everyone was nice? I understand that the science culture is collaborative. That's good, but in this case, it's as if we were entering an armoury: There were Chinese students and there were a lot of people. That seems to have been negligence or incompetence.
Take your pick: Was it negligence or incompetence?