You know nothing about the man but feel entitled to question his integrity. There's no evidence to suggest that finanual gain was his motivation. He served his term in the police and on retirement he offered his services to those who were willing to pay for them.
Mark Harrison quoted the costs charged by SYP for the dogs in 2007;
costs for the EVRD and CSI are available.
The daily rate for this dog team is 1000 Euros. Flight travel costs for handler and dogs could be 2750 Euros. Veterinary costs: U.K. and Portugal to comply with Pet Passports scheme 450 Euros. Accommodation, subsistence and vehicle transportation would incur extra charge.
https://www.mccannpjfiles.co.uk/PJ/MARK_HARRISON.htm
They were never a cheap option, but if you want the best you have to pay for it.
I feel entitled to question everything...isn't that your belief
Just because he is regarded as an expert and an expert witness does not make him right...experts have been shown to be wrong in the past
There is certainly one expert...more scientifically qualified than grime..who says remnant scent would not last three months