I watched a video for an ex-military lad heading home to his daughter on his retirement. He had saved up about $87k for her college fund. He had a phobia about banks, so had it all in a bag in boot of the car. He got stopped and recorded it all. The cop asked if he could search his car. He complied as he had nothing to hide, he thought. On finding the cash the police told him he was taking it. The man fought back back stating he had all his pay slips and receipts to show he owned the cash. they brought in a drug dog who found the bag when it was hidden. It is a proven fact that 90% of all bills in the US have drugs on them. He took them to court and got a positive verdict. It cost him near $20k to get his own money back.

found it:

At least in the US, the police found that the chances that a drug dog actually finds drugs is about 50/50. Which are not odds they like when it means they have to get a warrant, do the minimum amount of explaining to a judge, and do their job for once. So they found it was easier to train drug dogs to respond to signals and jump at a car on small signals or command. That way they jump on the cops suspicion and their 50% turns to 100%. If they find drugs then great, the dog let them bypass the warrantt and true due process. If not, then you have no recourse for action. Drug sniffing dogs for your local middle of nowhere PD are a joke.

"The dog didn't miss a single drug dealer's car, it's just great!"