Tips are vital to solving crimes. Not only to police detectives , but also to researchers and investigative journalist. Most fraud and corruption crimes are brought to the attention of the investigator by tips.
Investigators and researchers may have a keener sense of red-flags than most, but they are not any more psychic than other people.
It is important that if you see or know of fraud or corruption to speak up. At the very least document it for when you are in a safer, better place to speak up.
It is through individual activism that we all make the world a better place to live.