From TFA: "In the last year, government ministers and intelligence agencies have warned that foreign states are using the industry to “carry out their dirty wo

From TFA: "In the last year, government ministers and intelligence agencies have warned that foreign states are using the industry to “carry out their dirty work” in the U.K. — sometimes through the surveillance and harassment of dissidents that have fled to Britain as a safe haven." I guess the article discusses other things too, but even if your argument makes sense here, it doesn't negate the fact that once powerful foreign entities are involved, ones that have enough resources and motivation to hire ex-spies to do dirty work, calling the police can lead to disastrous outcomes. I guess you're lucky in a sense since apparently you haven't experienced the situations where you know there are times where the normal law enforcement / emergency services process won't work.