Something that needs to be considered: Statutory rights to arrest is a HUGE authority. If a civilian detains another person it can be kidnapping. A great deal of authority is given to police for a reason. IT cannot just be given out for the sake of CCW and any agency that would do it should be shut down.
However, in a manner of gathering data, which is what this thread was intended, if agencies could offer such credentials that would give a person this right, what would you pay for it?
Hmmmm... not sure. Probably not as much as most would think.
I love the convo on these forums, it's delightful to see the passion and expression of such among the brotherhood!