Maybe the murder/crime rate has technically gone down, but the prospect of getting thrown in a literal dungeon without trial for having a tattoo, being mistaken for someone else, or doing some thing the government decided they didn’t like that week, doesn’t sound safe, even if statistically so.

By that definition, the DPRK is “safe” because you’re unlikely to get randomly mugged or something while you’re there. But God have mercy on a tourist who tries to bring home a piece of paper from a hotel room.