The 2 carpet samples are identified in the bedroom plan as being ND 10 and ND 11.
ND 10 is the one that in pictures would have been covered by the rug.
ND 11 is the one that can be seen in one of the pictures.
ND would sensibly be attached to items gathered by Neil Davidson (SOC) officer.
The locations of the 2 carpet samples does not seem to be good for a general respresention of stained bits of carpets... we should expect samples from more differing areas if this was the case..so doubt is brought into why the spots selected as they were....eg 1 from near Sheila's body, 1 from near June's body and 1 from the area generally mid way between the 2 bodies.