Statement:
The level of criminal activities is higher in Tanzania than in Saudi Arabia

In the The Most Criminal Countries rating Tanzania holds position #36 ²⁰²² out of 139 and Saudi Arabia is #124 out of 139 ²⁰²².
Position of Tanzania is worse than position of Saudi Arabia.
Saudi Arabia 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 Tanzania

Referencies:

1. The Most Criminal Countries ²⁰²² by Numbeo

   The countries in the rating sorted by 'Crime Index' in descending order.

   Saudi Arabia	'Crime Index' value is	24.62
   Tanzania	'Crime Index' value is	55.79