Who are the authorised persons who can signal you to stop?.By the time we're done, you'll be ready for any and every (non-rude) hand signal that comes your way. We'll take you through who has the authority to stop your vehicle, what those arm signals will look like, and how you can respond in kind. But because you probably won’t see the police and others using hand gestures all that often, you might not recognise them when you do. Certain authorised people can also direct you by giving you hand signals.
Signs and signals play a key role in helping to keep drivers safe on the roads-but it isn’t just permanent signs you need to look out for. Police and Authorised Person Hand Signals Explained