One metric for investigative journalism, in my opinion, is to look at how many journalists are in jail: https://www.statista.com/chart/16414/jailed-journalists

One metric for investigative journalism, in my opinion, is to look at how many journalists are in jail: https://www.statista.com/chart/16414/jailed-journalists-timeline/ https://www.statista.com/chart/16414/jailed-journalists-time... This is only one data point and doesn't include journalists who were railroad out of their jobs, disappeared, murdered, etc.