Are Victim Detection and Forensic Evidence Search Dogs reliable?

[ferryman]

Eddie only bark alerts when he finds the strongest scent e.g. Kate's cadaver pants. He is trained to find the source/strongest scent before alerting. It's the reason the clothes are separated. He can get his nose in close on each item to alert which clothes has the strongest scent. IMO pants were in contact with a cadaver.

Based upon the dogs' behaviour, is it possible to distinguish between a strong signal and a weak signal'?


The dogs' passive CSI alert provides an indication as per their training and does not vary. They only give an alert when they are 'positive' that the target of the odour is present and immediately accessible. If they had any doubts they would not give an alert. EVRD gives an alert by means of a vocal bark. The variations in the vocal alert can be explained by many reasons such as 'thirst' or 'lack of air due to effort'.

(Martin Grime)

[Mr Gray]

Based upon the dogs' behaviour, is it possible to distinguish between a strong signal and a weak signal'?


The dogs' passive CSI alert provides an indication as per their training and does not vary. They only give an alert when they are 'positive' that the target of the odour is present and immediately accessible. If they had any doubts they would not give an alert. EVRD gives an alert by means of a vocal bark. The variations in the vocal alert can be explained by many reasons such as 'thirst' or 'lack of air due to effort'.

(Martin Grime)

 This certainly is the most extreme contradictions in the posts by Grime...strange that posters who have found contradictions in the mccanns posts havent noticed this one

[Mr Gray]

the alert to the flower bed was a weak one...an alert that grime says does not exist

[Carew]

This is from the "questions" section of Mr Grime`s statement:-

'Based upon the dogs' behaviour, is it possible to distinguish between a strong signal and a weak signal'.
The dogs' passive CSI alert provides an indication as per their training and does not vary. They only give an alert when they are 'positive' that the target of the odour is present and immediately accessible. If they had any doubts they would not give an alert. EVRD gives an alert by means of a vocal bark. The variations in the vocal alert can be explained by many reasons such as 'thirst' or 'lack of air due to effort'.

(Edit to add the link.) .http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES_RIGATORY.htm

[Mr Gray]

This is from the "questions" section of Mr Grime`s statement:-

'Based upon the dogs' behaviour, is it possible to distinguish between a strong signal and a weak signal'.
The dogs' passive CSI alert provides an indication as per their training and does not vary. They only give an alert when they are 'positive' that the target of the odour is present and immediately accessible. If they had any doubts they would not give an alert. EVRD gives an alert by means of a vocal bark.[b] The variations in the vocal alert can be explained by many reasons such as 'thirst' or 'lack of air due to effort'. [/b]

(Edit to add the link.) .http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES_RIGATORY.htm

I see so the dogs give a weak alert when they are thirsty

[Carew]

I see so the dogs give a weak alert when they are thirsty

Apparently........or when they are out of breath!

 Still an alert though.......just a bit dry and wheezy after a long day, maybe!

[Mr Gray]

Apparently........or when they are out of breath!

 Still an alert though.......just a bit dry and wheezy after a long day, maybe!

and grime has told us what the alerts signify.....

[Carew]

This certainly is the most extreme contradictions in the posts by Grime...strange that posters who have found contradictions in the mccanns posts havent noticed this one

It isn`t really an "extreme contradiction" though, because he explains why a variation in the vocal alert can occur.

[Carew]

the alert to the flower bed was a weak one...an alert that grime says does not exist

Mr Grime explains the reason why a "weak" vocal alert may occur.

[Mr Gray]

Mr Grime explains the reason why a "weak" vocal alert may occur.

mr Grime explains a lot of things but posters don't want to listen

[Mr Gray]

It isn`t really an "extreme contradiction" though, because he explains why a variation in the vocal alert can occur.

it is in my opinion

[Carew]

mr Grime explains a lot of things but posters don't want to listen



You didn`t listen to his reasons for differences in the vocal alert........You seem to give your own opinion.

[Carew]

and grime has told us what the alerts signify.....

...........and Mr Grime also told us what might lead to a variation in a vocal alert..........(maybe you should take your own advice and listen? )

[Mr Gray]

...........and Mr Grime also told us what might lead to a variation in a vocal alert..........(maybe you should take your own advice and listen? )

I think there is some confusion here between a weak bark and a weak response...but as they both mean sweet FA unless they are pulling a MIA out of the Mekong...what does it matter

[pegasus]

Trying to make alerts at apartment fit with an alleged 10pm discovery doesn't work IMO.
CSST experiments indicated 2.5 to 3 hours for consistent detectability.