PCA Report paragraph 46. Title from David and Goliath p33.

46. Mr Karam suggests the investigation was "seriously deficient" at the scene and that there was contamination in the total darkness that existed. Again such comments are incorrect. Everyone was at pains to avoid contamination. There was not total darkness - the officers used torches for illumination and some lights were on inside the house. He suggests that the cat or the dog may have been responsible for the transfer of blood on to David's shorts.  A cat and a dog were noted by the Police but luminol tests of the floors failed to detect any paw marks where they might have walked through or transferred blood. Nor did either' animal sit or climb on David during the time Police were in the house and the dog was taken outside early on.