What are those in CDMX? Coyoacán, Roma.... What else?
Oaxaca - used to be or perhaps still is relatevely safe, isn't it?
Rivera Nayarit? Baja California?
Aguascalientes -- I've seen a video that this particular place, if I'm not mistaken, has become a war zone and people flee their home.
Merida -- yeah, I felt more or less safe, but it's also very boring.
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Also, many police stuff, if not the majority,︀ work for cartels, don't they?