Yes, many countries have treaties that allow for the application of an outstanding warrant to be applied in Another Country. THere is a process involved in this where the original country, Canada, would be required to patition the US to have the person transferred back to the original country.
Unless the arrest warrant specifically states that the issuing agency will extradite then you can not be arrested for it.
If his warrant is listed and they find him, he could be arrested either leaving or when he attempts to return. Best to clean up the legal problems first.
yes, a warrant is a warrant.
No, they arresting officers do not have to have the warrant in their possession, only the knowledge that it exists.
Yes Yes
A warrant is a judicial order for an arrest. If the warrant was still valid, the law enforcement officer has no choice but to make an arrest.
Yes.
Then you could be extradited to the county that issued the warrant.
No
Yes.
yes, you can be arrested in NC for a warrant that was issued by the New Jersey courts.
if the warrant is for your arrest then yes you would be arrested