This document summarizes the evolving legal justifications and limitations for the use of force by police based on three Criminal Code provisions from 1892, 1955, and 1994. It discusses debates around a police commissioner's comments on new limitations preventing tactics like pretending to engage in illegal acts. The document also examines Bill C-24, which introduced broad immunity for "designated officials" conducting investigations, though with some limitations. Concerns are raised around accountability and oversight for designations and justified illegal acts.