> Didn't get the connection with "killing in self defense".
If a reasonable person, in your situtioan, thought that their life was in danger, they can kill someone in self defence. This is less about "intention", but about "what's inside your head", but hose are very similar.
> It is true that theft and fraud are all crimes where the intentions are important, however it applies after the crime is already been confirmed.
Not always. Some countries say "theft" is only when you intend to permanently deprive someone of something. So if I find your wallet on the street, and pick it up in order to bring it to the police station, then I amn't guilty of stealing your wallet. Because I didn't intend to when I picked it up.
If a reasonable person, in your situtioan, thought that their life was in danger, they can kill someone in self defence. This is less about "intention", but about "what's inside your head", but hose are very similar.
> It is true that theft and fraud are all crimes where the intentions are important, however it applies after the crime is already been confirmed.
Not always. Some countries say "theft" is only when you intend to permanently deprive someone of something. So if I find your wallet on the street, and pick it up in order to bring it to the police station, then I amn't guilty of stealing your wallet. Because I didn't intend to when I picked it up.