I have no idea. But the point I was trying to make is that people believe that the crime has been reduced. This is probably a more important metric when it comes to determining why people would or would not trust a government. It is important to realize that peoples' perspectives are often not rooted in reality. I bring this up because people responding to me are not operating under the assumption that this is possible. Is this not understood? Do I need to provide evidence? I can. But it seems you do understand since your next sentence is talking about propaganda. So I'm a bit confused at how to respond to your comment. I don't know if you're agreeing, disagreeing (this is what it sounds like), or just adding more information. As to propaganda, I'm not sure the average person is acutely aware of it, since this is the literal purpose. I mean it is easier to see on the outside (propaganda of another country vs propaganda from your own country) and I think we often pretend propaganda is more "Uncle Sam needs you" vs "What's your carbon footprint?"[0] Because propaganda is aimed at specific people it is generally unnoticed when you are the actual target.

[0] This isn't anti-climate change rhetoric, this is a campaign started by BP to shift fault from corporations to individuals.