Sorry, It's been known to happen ...
Why did the SDPD use polaroid photos of of evidence only after the evidence was tested ?
The SDPD policy is a 35mm photo and a negative before and after testing.
For the Westerfield case, SDPD used a polaroid print, no negative --poor enlargement.
And particularly when they (SDPD & DA) knew the evidence would be challenged, they used piss-poor techniques . Why do you think this policy was changed ?
Please do me a favor and post pics of the "bloodstain" on Westerfields jacket.
Ditto pics of the 1/4" spot from the MH carpet.