Please remember this video the next time someone says, "Well if you have not done anything wrong, you don't have anything to worry about." The officer admits putting illegal narcotics on cars randomly around town–enough to have a dog "alert" to anyone's car, whether they have ever used drugs or not. This isn't an officer "caught on tape." The officer readily admits that this is what he does.
To fully appreciate the video above, you should watch this video first. This victim of police misconduct filed a lawsuit against town and officer. A year or two later, his attorney gets his opportunity to question the officer in a deposition. That's what the above video is all about.