Statement:
The level of criminal activities is lower in Japan than in Greece

In the The Most Criminal Countries rating Japan holds position #129 2022 out of 139 and Greece is #57 out of 139 2022.
Position of Japan is better than position of Greece.
Japan is an outsider of the "The Most Criminal Countries" rating. So in most cases, you can feel safe and unlikely will face a criminal, compared to Greece

Referencies:

  1. The Most Criminal Countries 2022 by Numbeo
    The countries in the rating sorted by 'Crime Index' in descending order.
    Greece 'Crime Index' value is 47.97
    Japan 'Crime Index' value is 22.24