Statement:
The level of criminal activities is lower in Rwanda than in Sri Lanka

In the The Most Criminal Countries rating Rwanda holds position #120 2022 out of 139 and Sri Lanka is #86 out of 139 2022.
Position of Rwanda is better than position of Sri Lanka.
Rwanda 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 Sri Lanka

Referencies:

  1. The Most Criminal Countries 2022 by Numbeo
    The countries in the rating sorted by 'Crime Index' in descending order.
    Rwanda 'Crime Index' value is 25.54
    Sri Lanka 'Crime Index' value is 40.97