If you are stopped by the police either while you’re on foot or in a car, what information are you required to give them?
You are not obliged to give the police any information, although failure to do so could possibly amount to obstructing the police in the execution of their duties. If you are arrested you should be advised of your “right to silence”, although in some circumstances a court is now allowed to draw inferences from the fact that, when questioned, you failed to mention certain facts if you later rely on them in court. Unless you are arrested you can refuse to go to the police station, at which point the police will have to decide whether they have reasonable grounds” for suspecting that you are guilty of an “arrestable offence.” However legal advice at the police station is free!