Second, there is a big problem for detainees when it comes to things like identifying oneself. It has to do with cops and something called RAS (reasonable articulable suspicion)--the OCer has almost no way to know for sure whether the cop does or does not have genuine RAS that will stand up in court as legal justification to temporarily seize him. What the OCer is actually doing may matter less than what the cop is told by the dispatcher when relaying/distorting/summarizing the 911 call. See the link below for more information on this.
Also, Nevada helped get stop-and-identify laws cemented in this country. There is a court case called Hiibel vs 6th Judicial District Court that basically says stop-and-identify statutes like Nevada's are constitutional if they meet certain criteria. See the other link below.
How do you know whether the cop has genuine RAS: http://forum.opencarry.org/forums/sh...e-Cop-has-RAS&
Hiibel (scroll down the page): http://forum.opencarry.org/forums/sh...ources-Here!!&