I think the exemption for officers in these kinds of cases is covered in existing Criminal Code sections.
I don't put a lot of faith in the argument that this kind of law would apply to police officers. Officers either working on emergency response teams or in these kinds of situations have their faces covered for a very legitimate reason, and it's because of the counter-surveillance and proactivity by organized criminals and gangs on the officers who are identified and their families. So, in certain cases, they keep anonymous for a very legitimate reason.