If she decides to do so, this decision is up to her. That being said, members of a committee like this one or other MPs could certainly share anything that they consider to be a problem with her. She could then launch an inquiry. This issue concerns her, and it's not necessarily the case for the others. It may be the case for some, but regardless, if she receives the information and decides that an inquiry should be carried out, she can do so now.
On May 5th, 2015. See this statement in context.