goodfielder wrote:No it looks like the offence is actually a misdemeanour
Entering the United States without inspection is a misdemeanor criminal offense, but the offense is completed once an individual has entered the country.
Link here
http://www.nilc.org/immlawpolicy/arrestdet/ad070.htm
That being so then it seems there is no citizen's arrest under Az law. Anyway I think that given the fact that legislation has been enacted to allow local law enforcement officers the authority to act under the applicable federal law controlling immigration that there is no citizen's arrest right at all.
Under AZ revised statute 13-3884 it says...
13-3884. Arrest by private person
A private person may make an arrest:
1. When the person to be arrested has in his presence committed a misdemeanor amounting to a breach of the peace, or a felony.
2. When a felony has been in fact committed and he has reasonable ground to believe that the person to be arrested has committed it.
So,under AZ law,they DO have the power of citizens arrest.
Under Az revised statutes,
13-3884
13-3889
and
13-3900
you will see the exact AZ statutes regarding AZ law.