CHICAGO — In the Chicago Public Schools Office of Inspector General’s annual report released Tuesday, the district watchdog urged CPS to adopt new training protocols for volunteers and vendors as part of its ongoing efforts to address adult-on-student sexual misconduct. And, in light of investigations revealing the district potentiallylost tens of thousands of technology devices, cumulatively worth millions, and failed to verify fraudulent requests for extra pay, the OIG recommended expanded oversight. Among cases closed by the agency’s general investigations unit from July 2022 through June 2…