Is the legislature all democrat? If the legislature passes these laws and creates this agency, that answers the question where the governor’s authority to act comes from. As these laws regulate fundamental rights guaranteed in the US Constitution, they must be narrowly drawn to pass constitutional scrutiny. What “narrowly drawn” means when an emergency is declared is anyone’s guess. I don’t know the law here, other than the Governor cannot intern Japanese Americans ( or, presumably any other group). See Korematsu v US, overruled in Trump v Hawaii (at least, I think that was the case overruling Korematsu).
There's a super majority in both chambers, plus a Democrat Governor.