Chain of custody -- have to find out and verify when the subject got the CoLB.
All this hookiness comes about because nether Hawaii nor Obama has been interested in getting the whole truth out in a way that answers honest questions as to the CoLB's validity.
I have both photos and scans of these documents. They came from a colleague of mine who neither supports McCain or Obama, who is not in Hawaii, who I trust explicitly, and who has neither the motive, means or the opportunity to create a forgery.
Whereas, the folks who created the Obama COLB had the motive, the means and the opportunity to create a forgery and to suppress the truth about Obama's current birth record - which America still has not seen yet.
The two 2007 COLBs that I received have all of the requisite features of being real and ones that show no signs of image manipulation. Now contrast these with the one, and only one, image proffered by the Obama camp. This is a very distinctive image that failed to pass the "smell test," so to speak.
If you rule out the 2007's I received, then you might as well rule out every other COLB on the Internet, including PD's, Tomoyasu's, Smith's, and Michele's. There are specific criteria that are only pertinent to a forgery and not to a genuine image, and are the reasons why these COLBs are not forgeries.
It's like getting a $20 bill only once in your lifetime that looks real, but has the telltale signs of being counterfeit. It would make no sense for you to assume that every $20 bill you get from now on is counterfeit until proven genuine.
Likewise, there are telltale signs of an image being manipulated, post-hoc, and 've mentioned them before. Now, when I get the actual paper COLB I requested from my friend, I will be able to provide the evidence and criteria for discerning between a real image (and photo) and a fake image (and photo).