If I understand serendipity correctly, Eddie would have reacted to blood only where cadaver scent was also present.
I may have misunderstood.
But if I have understood correctly, I am far from convinced.
The dog is trained to react to blood by being introduced to blood, as a discrete scent, and being rewarded for reacting to it.
That would mean the dog would react to blood, as a scent in its own right.
Yes you have misunderstood yet again Ferryman. I have NEVER said that. This is what is what I have ALWAYS said:
Eddie was trained as follows:
http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES_RIGATORY.htm'The dog EVRD is trained using whole and disintegrated material, blood, bone tissue, teeth, etc. and decomposed cross-contaminants. The dog will recognize all or parts of a human cadaver. He is not trained for 'live' human odours; no trained dog will recognize the smell of 'fresh blood'. They find, however, and give the alert for dried blood from a live human being.'
And Keela - source
http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES_RIGATORY.htm'The dog that alerts to human blood is trained exclusively for this purpose, and includes its components, plasma, red cells, white cells and platelets. Given the nature of the training, the dog will not alert to urine, saliva, semen sweat, nasal secretion, vaginal secretion or human skin unless these are mixed with blood.'
Eddie and Keela were used in tandem as a failsafe method to eliminate any chance of false positives. Eddie's original training was to human blood and latterly and mostly to cadaver scent using pigs and human cadavers and Keela purely to detect human blood. That's why the dogs were used in tandem.
Ergo Eddie would be sent in first to a location as part of an investigation to check and if he alerted then Keela was sent in to see if she also alerted. If Keela also alerted then the alert was to blood as that is all that Keela is trained to detect. If she did not alert too then Eddie was alerting to cadaver scent.
I've seen a few posts about body fluids today which are misunderstood by Garana and others. When Martin states :
''Eddie' The Enhanced Victim Recovery Dog (E.V.RD.) will search for and locate human remains and body fluids including blood to very small samples in any environment or terrain'
He is talking about the fluid which are produced by the body as it breaks down and liquefies and NOT urine, saliva and semen etc/
The dogs alert to two things and two things only. Eddie was trained to alert to blood and cadaver scent and Keela to blood. They would never alert to to urine, semen and faeces etc unless they were mixed with blood.
Also recent claims that Eddie's alert to the wardrobe was due to volatile organic compounds produced by the blood specks found beneath the tiles behind the sofa is frankly ridiculous and I have yet to top laughing.
When Martin Grime states that the scent source can be in a different place to where it can end up, he IS referring to cadaver scent, not blood.
There were no blood alerts in that room! Keela DID NOT alert.
'What we have to be able to understand in a situation such as this is in a hot climate with the apartment being closed down, the scent will build up in a particular area. If there isn't a scent source in here, i.e. a physical article where the scent is emitting from, any scent residue will collect in a particular place due to the air movement of the flat, the apartment and what I would say in this case is that there is enough scent in that area there for him to give me a bark indication but the source may not be in that cupboard, the source may well be in this room somewhere else but the air is actually pushing into that corner. But *strong indication and I would say its positive for things that he is trained to find, which will be part of a separate debrief.'
*Note my asterix and bolding above - Eddie was trained to alert to blood, and trained to alert to cadaver scent.
The text below is taken from: EDDIE & KEELA MARTIN GRIMES REPORT
http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES.htm'CADAVER SCENT
The odour target of cadaver is scientifically explained through 'volatile organic
compounds' that in a certain configuration are received by the dog as a
receptor. Recognition then gives a conditioned response 'ALERT'.'
This document explains all about bodies and volatile organic compounds, scent cones and pooling
http://books.google.co.uk/books?id=WTXuc7BjA-QC&pg=PA16&lpg=PA16&dq=scent+cone+cadaver+dogs&source=bl&ots=XREMMLEHza&sig=byZDj6-I1NNSu4UVt29qwhm9JAY&hl=en&sa=X&ei=q7c2U4yFFeev0QXMzoHYDw&ved=0CC4Q6AEwAA#v=onepage&q=scent%20cEddie was not trained using cadaverine during his cadaver training but was trained on pigs and human cadavers.
Research from March 2013 blows the myth that Eddie possibly alerted to urine, bad breath, semen or other substances out of the water.
The following is sourced from
https://ir.library.dc-uoit.ca/bitstream/10155/315/1/Stadler_Sonja.pdf and is further supported here
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0039005Cadaverine and putrescine are products of amino acid breakdown and were previously thought to be the main contributors of decomposition odour. It was also beleived that these volatile compounds are a target for cadaver dogs. However research into the VOCs produced by pig and human decomposition was UNABLE to identify these two diamines. This casts doubt on the importance of putrescine and cadaverine as key components in decomposition odour.
And on that note, I am off to enjoy the rest of my Sunday evening.
