It was interesting to read that the this had happened to someone else once before. Same dog indicated drugs.
"Timothy Young was anally probed at the Gila Regional Medical Center in October 2012 after being pulled over for allegedly failing to use his turn signal. The same law firm is representing Young, but it's unclear what the status of his case is."
The chance of abuse with dogs is too great as we see time and again, they just need to be relegated to search and rescue, fugitives, and explosives.