smudged123

"Probable cause Facts or evidence that would lead a reasonable person to believe that a crime has been, is being, or will be committed and the person arrested is responsible

At this stage, police may perform a search, and often an arrest. Probable cause generally means police know what crime they suspect you of and have discovered evidence to support that belief. Common examples include seeing or smelling evidence which is in plain view, or receiving an admission of guilt for a specific crime."

This is an excerpt from Definition of Probable Cause | FlexYourRights.org
as the definition of probable cause.
I'm still a bit unsure what this means though:
Would this mean if you were stopped by an officer, and when they came up to your window and claimed to have smelled marijuana, is that alone probable cause? Or does it need to be in plain view as well?