It has been claimed on this forum that the McCanns could only have been involved in their daughter's disappearance if a series of improbable events had taken place over the night of the 3rd. While I agree that a series of improbable events did occur on the 3rd and beyond I'm not sure they support the abduction theory.
A) Jez seeing or hearing neither Tanner or Tannerman in a quiet street.
B) The children's bedroom window being open for no discernible reason.
C) The unresponsive state of the twins.
D) That medical assistance was not sought for the twins even though their parents suspected they had been sedated.
E) Mr Smith's 60-80% identification of Smithman as Gerry.
F) Oldfield not checking properly if Madeleine was in bed although, according to his wife, he did check in the parent's bedroom.
G) The change in checking routines from previous nights.
H) Alert by Eddie the cadaver dog in the McCann's bedroom but not by Keela.
I'm sure more can be added as the discussion proceeds.