Lt. Billets receives an e-mail from Sgt. Alvarez at Internal Affairs telling her, as an accused, to contact him by e-mail, or the number listed in his e-mail. Detective Vega receives a similar e-mail, with her as a witness, being told the same thing. Contact the sergeant by e-mail or the listed phone number. Both e-mails are shown onscreen, but there is no phone number listed in Vega's email.