I have hardly interacted with policemen in my adult life except a couple of times when they wanted to check my driving license and pollution certificate, I had all the papers and everything transpired smoothly. Once when I had to get my passport, the identification process in a local police station, consumed half the day but nothing untoward.
I was too young when it happened to remember the details, 4 years old at that time but my parents always tell me this. Once while travelling with the family I got lost outside Chennai Central railway station, my grandfather who was responsible for me holding my hands somehow lost me in a crowd, my parents and grandpa suffered nervous breakdown for those couple of hours. Turns out that some policemen had spotted me, kept me calm/happy and located my family. Even my close relatives have had positive experience with the cops, hope it stays that way.