#2
Yes.
"An arrest made by a citizen, for whom legal authority arises from the fact of citizenship, rather than by an officer of the law."
http://www.answers.com/topic/citizen-s-arrest
Below are supporting references;
CITIZEN'S ARREST - THE LAW OF ARREST, SEARCH, AND SEIZURE FOR PRIVATE CITIZENS AND PRIVATE POLICE
http://www.ncjrs.gov/App/publications/Abstract.aspx?id=44479
How ever, it does look like it varies from state to state, over all it is simular.
http://www.dol.wa.gov/business/securityguards/citizenarrest1.pdf
Perfect example:
"The standard applied to an extra-jurisdictional police arrest is the same as that applied to a citizen's arrest. See State v. Sobrino, 587 So. 2d 1347 (Fla. 3d DCA 1991)."
http://www.flhsmv.gov/CASES/Furr.html
Citizens' Arrest
http://www.constitution.org/grossack/arrest.htm
[edit to add below "clause", because I like the usage of the words he he he]
"(c) Any person making an arrest pursuant to this section shall deliver the person arrested to a law enforcement officer without unreasonable delay."
Yes, hmm define unreasonable, because my unreasonable may, be different than yours, your honor...
hehehe
...yes I am another scout on the information highway....