The sixth event, insisting that Plaintiff be the subject of an internal affairs investigation, also may constitute an adverse employment action. See Guthrie v. Carvajal, No. 1:18-CV-0282-BAM, 2021 WL 1966326, at *16 (E.D. Cal. May 17, 2021) (instituting an investigation constitutes an adverse employment action); accord Coszalter, 320 F.3d at 976-977.