man, u think that may be the police is arresting innocents.... but believe me its not he case..... nobody has a tag of terrorist on his forehead..... if u gotta solve a case, u gotta arrest some suspects....then only u can reach the culprits.... and in this case the people police have arrested have full history of crime....... so whats the harm of interrogating them....... ok u think that only being related to simi doesn't mean that the person is terrorist.... in that case i will recommend u to learn more about SIMI and their objectives..... and also read about the principlas indian democracy was built upon....