<rsmb>.
Even at that point, they may have still believed it was stolen goods or drugs - and with NM and SH being arrested, the police would have been checking out all of their movements (NM and SH's movements) ....... so at some point, the police would be looking to see what was in the shed. I can believe at that point, they could still have been naive enough to think it was something other than Becky.
Hmmm not so sure about that.
Karl Demetrius, 29, and his girlfriend, Jaydene Parsons, 23, admitted at an earlier hearing at Bristol Crown Court to a charge of assisting an offender but they maintain they "did not know or believe" the bags contained Becky's body.
...
Karl Demetrius says he believed it was cannabis but became increasingly suspicious that the contents related to Becky Watts.
Jaydene Parsons says that she only formed the belief that the bags were related to criminal activity during the evening before her arrest.
– Prosecutor William Mousley QC
http://www.itv.com/news/update/2015-10-07/couple-whose-shed-used-to-store-body-parts-named/