If you haven't accepted the banknote yet, politely refuse to accept it.
Under no circumstances should you take actions that may jeopardise your
safety or that of others.
Please report to the police that someone potentially attempted to pass a counterfeit note.
If you are in possession of a suspect banknote, store the banknote safely and handle it as little as possible.
Note all relevant details such as date, time and place of receipt, car registration number and whether you have CCTV.
Please hand any suspect banknote to police as soon as possible and provide any details around how you came into possession of it.