Well can't see how they come to the 75% figure, so would be good to see. As for pepper spraying the dog would that not classed the same as assulting a police officer?
"Release has made several Freedom of Information requests to police forces throughout the country which show that in over 75% of searches (resulting from a dog sniff) no drugs were found. This is backed by further Australian research." http://www.release.org.uk/campaigns/current-campaigns/sniffer-dogs
"Release has made several Freedom of Information requests to police forces throughout the country which show that in over 75% of searches (resulting from a dog sniff) no drugs were found. This is backed by further Australian research."
http://www.release.org.uk/campaigns/current-campaigns/sniffer-dogs