No automatic private duty to protect every individual
Police legislation gives officers broad public duties, including preserving peace, preventing crime, and protecting life and property. Those duties do not automatically become a privately enforceable duty owed to every person who may be harmed.
In Hill v. Hamilton-Wentworth Regional Police Services Board, the Supreme Court of Canada rejected the idea that police owe a general duty of care to every potential victim. A claimant must establish proximity, a recognized duty of care, breach, causation, and damage.
Jane Doe v. Metropolitan Toronto Commissioners of Police shows the exception. Police knew a serial rapist was targeting a narrow, identifiable group and failed to warn them. The court found negligence and Charter violations because the risk and affected group were sufficiently specific.