NightHiker,
For the most part, I couldn't agree more with Hikermor's and your assessment of SAR operations and the personnel that get involved with SAR. I do take minor exception to:
Law enforcement personnel involved in SAR operations is a slightly grey area in my book. I know they're almost always more than happy to help but to me it's a matter of them being where they are most needed by the community they serve and how it effects their budget (my tax dollar).
I was always taught (and how our team handles) that all SAR operations are primarily law enforcement functions due to potential foul play and should be handled as such until proven otherwise.
Pete