When Eddie alerted in the corner of the bedroom Martin Grime gives us an explanation of what he thinks is happening. Personally I have had an interest in physics and in gas stratification all my life and I had doubts that Martin got the physics right.
What did he actually say:
http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES.htm"Apartment 5 A
Ok what was done was we deployed the victim recovery dog into the apartment and by experience and the training of the dog what I first noticed is that as soon as I came in that the dog was very excited and as a handler I can pick up his body language etc and it would appear to me that as soon as he has come into the house he's picked up a scent that he recognises and he has then gone through the apartment trying to source where that scent source has come from and as he has worked through the house the only two places where he picks up enough scent to give me the bark alert are in this bedroom, in this corner where he was barking.
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."
I have no issue with what he says in the first paragraph as he is basically describing his dog's behaviour and who would be better to know to that than him? No one TBH.
The last sentence of the next paragraph is his judgement and based on his experience I wouldn't question it.
But why did he attempt to give us a physics lesson in the second quoted paragraph?
"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."Are there any scientific experiments performed that back up what he thinks is happening?
It is also interesting that he too nominates the cupboard as the source in a fashion. "but the source may not be in that cupboard, the source may well be in this room somewhere else" on the provision he has his physics right!
Looking at the video there is a clear correlation between the 2nd or 3rd shelf of the cupboard and the alert being given immediately after sniffing the air in the cupboard compartment.
If the source was "somewhere else" would the maximum concentration of cadaver odour ever accumulate on the 3rd shelf of the cupboard?
I'll add the link to the video of Eddie doing a check in the main bedroom apartment 5A later.
https://youtu.be/3EH[Name removed]pXii9o?t=122 from the edited version. Unfortunately Martin walks in front of the camera at the critical moment.
