I have just seen this on the DM online (so probably wrong!) (sorry don't know how to post link so I have copied and pasted)
Officers had previously conducted a full search of the house and a second sweep using dogs trained to detect dead bodies. Colleagues suspect the body was behind a door connecting the loft to that of an adjacent property.
Sources claimed a team who spent two hours searching the property last Sunday did not check the neighbouring loft space because they needed a search warrant.
A further search of Sharps house began on Friday morning when a junior officer insisted a sniffer dog was indicating towards a bedroom ceiling. The officers themselves could also smell decomposition.
Initially a senior officer co-ordinating the search said the loft had already been checked but was persuaded to change his mind.
Colleagues lifted the loft hatch and saw a large container, possibly a rigid suitcase, containing Tias body with her arms and legs sprawled outside.