They are very rare. That's not to say that it's not a tool that an Attorney General can utilize. General directives, the two that we've spoken about, have been issued but there has never been a specific directive issued on a particular case before the courts, nor has there ever been utilized, under section 15, an Attorney General taking over the prosecution. It would be a first if that were to happen.
On February 27th, 2019. See this statement in context.