David I think the question was how long could the dog sustain deep concentration , not how physically active it could be .\
Condition and innate drive .
There are SAR tracks which take longer !
There are dogs that search Bed Bugs in hotels, theatres, public transit , schools etc etc -- with sustained concentration and accuracy pretty much all day .
Same with Customs dogs .
I would question a dog that can't work with concentration longer than 20 minutes .
dog "Dr Baker" , Simba, Sable, and I am sure Buffy worked diligently and accurately for as long as it took. "Baker" was used when Pope John Paul did his first North American visit -- all buildings and route were searched by him prior to the Pope entering that zone . Baker also did the search and security for the G 7 Summit in 1988 , assigned to the protection of Pres Reagan .
Simba - Houston Intercontinental Airport - all day.
Dogs at the GTAA -- all day
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Last edited by carmspack; 09-25-2013 at 07:40 AM.