Yes, it is my opinion - and also simplest explanation by far. You are welcome to propose an alternative theory that would describe a mechanism by which dropping foot patrols causes a drop in burglaries. I would be quite sincerely impressed. As I said, I am open to a debate on overall effectiveness on "broken window theory", but I'll have you note its proponents claim it is "in large part responsible for NYC going from a city that in 1990 had 9.6% of the nation’s homicides to a city that in 2013 had 2.4% of the nation’s homicides". I won't rush to any conclusions, but I find a drop of 400% over two decades more convincing evidence than a drop of 4% over 2 months. I am no fan of US police. It appears poorly trained, often excessively violent Spoiler : (EDIT: see https://9gag.com/gag/azmAQ4N for an example of behavior I could not begin to imagine from Estonian police. I half-heartedly hoped the video is staged, but apparently not. The guy wasn't even the one they were after!) and lacking in supervision. However that may be, every society requires law enforcement. If one does not trust in possibiity of reform, I guess one can advocate for secession or revolution. That is what happened in Soviet Union in any case.