Which of the Following Statements About the Conviction in Winzar

Which of the following statements about the conviction in Winzar v Chief Constable of Kent (1983) is FALSE?

A) It was not necessary to adduce any evidence as to the state of mind of the defendant
B) Involuntariness was no defence
C) How the defendant came to be on the highway was highly relevant
D) The defendant's conviction was justified by the need to deal with the nuisance of drunken behaviour in public places