My role was executive director of environmental enforcement at the time. I wasn't directly involved in the case. There were officers assigned to work the case in the Ontario region. There were supporting people from the lab that did testing of the engines, and so forth. My role, as an executive, was supervising the officers who were actually conducting the investigation.
I should note that my role at the time, in the same way that it is now, was not part of the chain of command. The director general of environmental enforcement, my boss, was the person in the chain of command most directly responsible for the case, but I did have a role, as an executive, during the entirety of the investigation.