Is it obligatory to obey the directions and signals of a policeman in uniform?

1. Correct answer: Yes, always, while taking extra precautions
2. No, only to the directions of a traffic policeman
3. No, only if the policeman is on duty
4. Yes, only as regards to traffic directions

WhyYou always obey a uniformed police officer's directions, but carry them out carefully. The officer doesn't have to be from the traffic police.