Are you saying they already had a warrant for his arrest but needed an excuse other than a warrant to pull him over? That makes... no sense? Or are you saying t

Are you saying they already had a warrant for his arrest but needed an excuse other than a warrant to pull him over? That makes... no sense? Or are you saying they wanted to catch him and then use whatever they found as a warrant to search him, in which case... where does it say that, and why are you saying they would have wanted to do that if the weed itself wasn't the reason? Or are you saying something else entirely? I'm not seeing anything indicating such in the article...