Warren v. District of Columbia[1] (444 A.2d. 1, D.C. Ct. of Ap. 1981) is an oft-quoted[2] District of Columbia Court of Appeals case that held that the
police do not owe a specific duty to provide police services to citizens based on the public duty doctrine.
....In a 4-3 decision, the District of Columbia Court of Appeals affirmed the trial courts' dismissal of the complaints against the District of Columbia and individual members of the Metropolitan Police Department based on the public duty doctrine ruling that "[t]he duty to provide public services is owed to the public at large, and, absent a special relationship between the police and an individual, no specific legal duty exists". The Court thus adopted the trial court's determination that no special relationship existed between the police and appellants, and therefore no specific legal duty existed between the police and the appellants.
https://en.wikipedia.org/wiki/Warren_v._District_of_Columbia
Here then, are the three things you absolutely must know about self-defense laws in Canada.
Number One: Defending yourself, contrary to popular belief, is NOT against Canadian law. The Criminal Code of Canada very specifically allows self-defense and defense of property in Sections 34 and 35.
Criminal Code
Number Two: Should you find yourself in the unfortunate position where you must defend yourself with deadly force, you will be arrested and charged with a crime. Crown prosecutors seemingly don’t like Canadians doing what is required to stay alive so you absolutely will go to trial on whatever charges are laid against you.
Number Three: Unless you’ve done something terribly wrong, the odds of you being convicted are on your side. The CSSA has dealt with many of these types of cases over the years, and in only one case was the individual convicted. To re-cap:
https://www.ammoland.com/2016/03/canadian-self-defense-law-three-things-you-absolutely-must-know/