Yes it's a US source. BTW a CSST experiment found that the minimum post-mortem interval required for even 1 out of 7 cadaver dogs to alert is 1 hour 25 minutes.
http://www.csst.org/forensic_evidence_canines.html
Thanks, I remember reading that.
They needed to agree on terms to describe the dogs' various training capabilities for the purposes of the paper, but the terms don't appear to be universal. The problem is that Eddie doesn't fit into any of those categories. Neither does Keela, actually.
NB: Just seen the full paragraph on that:
"6) Dogs used to develop probable cause based upon residual scent must be negatively conditioned to human urine, feces, and semen in order to ensure that the animal will not alert when encountering these substances during a search. All dogs, no matter what level of training, used in the detection of decomposed human tissue should be negatively conditioned to the scent of decomposed non-human tissue. It must be kept in mind, however, that many dogs will react or show interest to any decomposed tissue at certain short times during the decomposition process."
I haven't found anything that specifically states what Eddie would or wouldn't react to in working mode (I have concerning Keela, but not Eddie).
I would normally assume that he had been desensitised to urine / faeces, but something that always intrigued me in the clothes video was the lack of underwear (aside from one pair of knickers). Was underwear deliberately excluded, or did none (aside from that one pair) just not happen to be in that box?
There is also Eddie's first alert (which for some reason didn't make it to the list noted by the PJ) of the tiny blue shorts. Could a toddler's wee-wee accident have contaminated other clothes in that box?