Yes, now I can see that this Dr. Lang is definitely up to no good
. But regardless of the fact that he did have the luxury (if you can call it that!) of examining our fave vampire, he still is a lot quicker than most of the Collinwood denizens.
To wit, how many times in the history of DS were characters presented with cartloads of evidence as to Barnabas' (or that of other cursed characters) nature and all they did was look confused and utter the beloved Collinwood mantra: