Jodie,
blood on boots would bit tough. You will probably get DNA, but there is a lot of contamination sources. Thats primarily why sykes is wanting hair samples, he can desolve the hair sheath and get to the uncontaminated DNA inside.
Not sure on the blind samples stuff. i supose you could set it up as part of a test on various mammals, and just submit various blind samples from various mammals, and see if they get the knowns right, and then see what they get with the boot sample.
You can submit it to a sequence lab, they don't know or care what it is, they just send you or link you to a file of the sequence, so thats not an issue, but the researcher has to take those results, and process the results!
To tell you the truth, I am really leaning toward these guys as scheisters. Everything they are doing screams fraud! Everything they are doing screams - $ in their eyes.
CWB
It would be a long shot, if they got human contamination of course, then they would scream - SEE ! bigfoot is human! Get it as deer blood, and they will scream either incompetance (completely wrong, incompetance would lead to no ID, not a false positive) or the giant scientist conspiracy tentacles reaching out!