I would say that we have quite strict security procedures and processes in place.
In this particular situation, we were dealing with two employees—Canadian scientists, eminent in their field—who took measures to hide their affiliations and aspects of their work.
It was through awareness and training that the Public Health Agency and the lab personnel at the time identified a potential source of concern and then launched a series of investigations. Those successive investigations uncovered different layers of incidents. First, there were allegations, and then they sought evidence and enlisted—