In the interrogation scene in the beginning, Lt.Davis places three tapes on the table. In the next scenes the tapes are gone.
Mick and Beth are told that the sample of Coraline's blood has a very rare blood type, "less than one in a million" - and it's the same as Beth's, "AO negative". No such blood type exists. The rarest is AB-, which only 0.6% of the population of USA have.