What I have to say is that a policeman that breaks the law exists, but isn't really a policeman. By definition, the police are to follow the law and enforce it. By definition, a scientist adheres to the scientific method. In either case, they can exit the confines of their definitions, but in doing so also lose the label.
http://www.thefreedictionary.com/policeman
A policeman who breaks the law would still be a policeman.
Scientist - A person having expert knowledge of one or more sciences, especially a natural or physical science.
http://www.thefreedictionary.com/scientist
A scientist who doesn't fully adhere to the scientific method in all fields of life, still makes them a scientist. (In fact, it's very doubtful anyone at all adheres to the scientific method 100% all the time, thus by your definition, no scientists exist ever.)
What kind of odd definitions are you using, cause I've never seen yours before.