sir/madam about three years ago I went to city with my two friends.We missed our last bus so we were searching a hotel.suddenly two constable came to us and asked a bribe saying that it is late night and you can\'t roam.when we refused to give they took us to chauki.from there after asking our address they took us to a another big chauki(police station).where we meet to a police officer and explained all codition.He was satisfied but he said that because it is late night so they can't leave us and in early morning they left us after taking our sign.as three years have passed how can I know that have they registered any case or not against us