I'm going to venture a guess that you didn't realize that I read (and enforce) Canadian law for a living before you made that post and set yourself up for the written point-by-point deconstruction that follows. In point of fact, any Canadian legal expert would tell you exactly what I did. But now that I have some time to elaborate, I shall.
Common Law and Self-DefenceSo, all Common Law countries - and the US uses a derivation of Common Law - use virtually the same principles for self-defense: a person's duty is first to retreat if possible, but may use reasonable force to defend themselves or other persons. If one reasonably believes they are in imminent danger of death or grievous bodily harm as a result of force used against them, they may use force intended to cause grievous death or bodily harm to defend themselves.
This means literally every weapon of opportunity is acceptable. That means a drug dealer who has an illegal handgun may legally use it to defend themselves. That does not mean they are not still criminally liable for illegal possession of a weapon. I'll come back to this.
Stand Your groundStand Your Ground Laws are a twist on Common Law - they remove the duty to retreat. They do not exist outside the United States in other Common Law countries. You are correct that SYG was never argued by Zimmerman - he never needed to. He had no opportunity to retreat when he was facing death/grievous bodily harm. However, that is irrelevant for my argument above. SYG merely muddys the Florida waters and the comprehensive circumstances I blamed for this mess.
Use of Weapons In Self-DefenceAs I mentioned above, any weapon of opportunity is acceptable so long as the level of force is reasonable. That means if a person reasonably believes someone is trying to kill them, they can use whatever they get their hands on to stop them. BUT if you possessed that weapon of opportunity before you needed to use it, and you possessed it in a manner that is illegal, you are still criminally liable for that.
Canadian Firearms LawFirearms in Canada are governed by the
Criminal Code and the
Firearms Act and its Regulations. The Firearms Act divides weapons into three classes: non-restricted, restricted, and prohibited. To possess or transport any of them, you must have an appropriate license. All handguns are either restricted or prohibited. This will become important momentarily. The Firearms Act governs the circumstances under which a person may own, possess, and transport a firearm. The Criminal Code (Part III) sets out the criminal laws that apply to the possession, use, storage, and transport of firearms. Both are criminal legislation.
To own a firearm generally, one must be licensed. Conditions for non-restricted weapons and licenses are fairly benign. Conditions on restricted and prohibited weapons are quite strict. Restricted and prohibited weapons may only be possessed and used at particular locations under particular circumstances, and transported between those locations and your residence. This is all governed by a permit called an Authorization to Transport (ATT). Possession/use/transport outside of the parameters of your ATT, the Firearms Act, and the Regulations under the Firearms Act is a criminal offence under part III of the Criminal Code (section varies by circumstances).
Now, you referred to section 20 of the Firearms Act earlier. Section 20 is a CFO exemption which may be granted under specific circumstances, by permit, to certain persons, on a case by case basis. This is the section that allows corporations or individuals to apply for permits for their employees to carry handguns - armed security among them. These conditions may be amended onto an ATT in advance. Section 20 is located under the heading "Authorized Transportation of Firearms" for a reason, and is a special exemption to s.17, which requires a license holder to keep their restricted or prohibited weapon only at their dwelling or places authorized in their ATT. Section 20 is not a blanket that applies to all or most license-holders in Canada; it applies to very, very few.
Furthermore, s.20 is actually governed by Regulations. Specifically, the Authorizations to Carry Restricted Firearms and Certain Handguns Regulations, found at the bottom of the Firearms Act. There are extremely limited circumstances under which s.20 may even be applied. They are spelled out in detail there, you may read them if you wish.
Concealed Carry in CanadaIs completely illegal, except for peace officers permitted to use Criminal Code provisions that enable them to break the law in the course of their duties. In fact, carrying ANY concealed weapon is illegal in Canada, generally speaking. Section 90 of the Criminal Code. There are a few other Criminal Code offences and Firearms Act offences that relate as well, but 90 is the main one. S.90 hints there may be some circumstances under which the Firearms Act may authorize concealed carry (which will be by permit), but I have yet to ever find a related section of the Firearms Act that corresponds, or a provision in the Regulations. An exemption under one or the other would be required to negate s.90 of the CC, and a permit condition would be required as well.
Generally speaking, concealed carry does not legally exist in Canada.
George Zimmerman in CanadaBack to the original premise then. In Canada, George Zimmerman could not have carried a handgun around his neighbourhood, holster or concealed. He would never have been able to get a permit - he doesn't meet any of the Criminal Code conditions. Thus, his carrying of a handgun would have been completely illegal.
Would he be guilty of second-degree murder here? No - he used a weapon of opportunity to defend himself legally.
Would he be guilty of manslaughter here? Maybe - the intent requirements on manslaughter in Canada are considerably less than murder charges. s.232 of the Criminal Code.
Would he be guilty of criminal negligence causing death here? Almost certainly. s.219 and 220 of the Criminal Code. The prosecution could meet that bar quite easily.
Would he be guilty of firearms offences here? Absolutely - carrying a restricted or prohibited weapon in the circumstances and manner he did constitutes violations under Part III of the Criminal Code.
Given that I've forgotten more about Canadian law than you've ever known, Nakura, I trust you will shortly be recanting all of your statements on this page of the thread concerning Dragoth's and my posts and Canadian law on the subject. Given your grasp of Canadian law is best described as "atrocious," I'm going to venture a guess that all of the quotes you just provided concerning other countries are similarly distorted and ill-informed.