I was under the impression the cops could stop you for nothing at all (ie. checkpoints)
So I don’t see why it would be an issue if they stopped you for something they mistakenly thought was against the law, since they could stop you for nothing if they wanted.
Well, they do. But "officially" it should only be when they think you're about to commit a crime, are committing a crime, or have committed a crime.
Things like checkpoints are considered to be an exception to that rule. Courts have signed off on the practice, so long as certain criteria are met.
checkpoints and traffic stop are two different critters. You might want to bone up on that.
Yea you are mistaken.