raydan raydan:
What I meant is that by your logic, for the same offense, it would be OK for the US to arrest a former Canadian PM, but not for Canada to arrest a former US president.
If Bush or Clinton were drunk driving in Canada I'd expect them to be arrested and then our respective foreign relations departments would sort it out.
If someone in Canada got hurt because of that it would not be beyond the Pale to expect Bush/Clinton to be left to the mercy of a Canadian court. In the reverse of that situation I'd still expect the US to send the offending PM home.