Blood is what they traffic, in several different ways?
Blood is very useful for evidence in court?
And their own blood will be their price.
The blood scandal of the Clintons -
It would not surprise me if that was a beta test and they are all over the place now in one way or the other.
Those were adult prisoners - but they may have been testing out procurement/transportaiton/distribution etc. Lessons learned could apply to other blood related “businesses.”