Honest question, are there any reasons why a private citizen performing this sort of thing would be legally less of a problem than the state?
From a philosphical perspective I’m all for catching mail thieves. But I would get a little twitchy hearing that the police are mailing tracking devices. And I would be more or less ok with a private citizen helping to “catch the bad guy” with their security camera, but I do not want police surveillance cameras on my street, thank you very much.