Could you clarify where he stated that entire phrase in bold to the PJ?
In my role as advisor to the U.S. Justice Department I have facilitated
assessment of numerous cadaver search dog teams in the United States.
These dogs are exclusively trained using human cadaver sources. When I
introduced decomposing pig cadavers into training assessments 100 % of the
animals alerted to the medium.
(The products were obtained from whole piglet
cadaver not processed food for human consumption). The result from
scientific experiments and research to date is suggestive that the scent of
human and pig decomposing material is so similar that we are unable to 'train'
the dog to distinguish between the two. That is not to say that this may not be
possible in the future.
'Eddie' The Enhanced Victim Recovery Dog (E.V.R.D.) will search for and
locate human remains and body fluids including blood in any environment or
terrain. The initial training of the dog was conducted using human blood and
still born decomposing piglets. The importance of this is that the dog is
introduced to the scent of a
decomposing body NOT FOODSTUFF. This
ensures that the dog disregards the 'bacon sandwich' and 'kebab' etc that is
ever present in the background environment. Therefore the dog would
remain efficient searching for a cadaver in a café where the clientele were sat
eating bacon sandwiches. He has additionally trained exclusively using
human remains in the U.S.A. in association with the F.B.I. The enhanced
training of the dog has also involved the use of collection of 'cadaver scent'
odor from human corpses using remote technical equipment which does not
contact the subject. This method is comparable to the simulation of cross
contamination. It does however differ in that the remote scent samples
recovery does not involve subject matter and therefore is a 'pure' scent
sample. The dog has since initial training gained considerable experience in
successfully operationally locating human remains and evidential forensic
material.
http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES.htm