Also bear in mind that evidence is interpreted in many ways by different individuals.
This simply isn't true.
Moreover, the only people I ever hear say this are the people
who don't have any evidence; i.e. the creationists/Biblical literalists.
One piece of evidence is like a point (you know, the geometric construct that has no dimension, only location.) Through one point, an infinite number of lines can be drawn. This is congruent with the statement "evidence can be interpreted in different ways", and it's true that given
one piece of evidence, any number of explanations for it can be devised.
But given
two points, there's only
one possible straight line that can be drawn between them; between
multiple elements of evidence, there's really only one best explanation. Which is the best explanation? That's determined by the rules of informal logic and argumentation; like Occam's Razor (the rule of parsimony.) Those rules take lines and make them "straighter" - they make arguments "pass through" the least number of points, or posit the least amount of unverifiable consequences.
It's simply bogus to say that "evidence can be interpreted in different ways"; not all interpretations are as valid as others. Defending one's interpretation is the function of rhetoric and logic; it is insufficient to simply say "I have my interpretation and you have yours." Interpretations must be defended.