The private investigator passed the case to White Mist, a police detective named Brenda Felson.
Brenda knows that the law is often unable to solve certain cases, nor to offer adequate punishment to certain criminals, so she assumes the identity of White Mist in order to take justice into her own hands.
"So that's it. In the dead of night White Mist is going to pay a visit to the company's labs. If Shade is there, we'll find out. And that seems to be the case, since from what you've tracked, the company is suspicious at the very least..."