Normally, our role in litigation is to be as neutral as possible, so we inform the court and the parties how we administer the rules. In terms of whether they are constitutionally valid or not, the Department of Justice has a role to play. Others may agree or disagree and litigate that, but we are an agent of Parliament. So if Parliament decides to enact a particular rule, it's not for us to challenge Parliament in that regard.
On September 25th, 2018. See this statement in context.