The officer testifying was a street cop. His job was not to collect evidence at a non-declared crime scene. Even if he did, there was no SW and any potential evidence most likely would have been discarded.
I'm thinking they may have shown he didn't tell the other officers as he wasn't there to look for evidence, he was there to talk to Brad. They made it a point to say he had full run of the house while Brad was taking a shower. They MAY HAVE wanted to impeach him, trying to see if he LOOKED around as Brad wasn't present.
JMHO
fran
PS>...It's possible the officer didn't think about the hay, as he thought the forensic guys would collect it. When he was shown pictures, there was no hay....fran