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

In the The Most Criminal Countries rating Brunei holds position #111 ²⁰²² out of 139 and Saudi Arabia is #124 out of 139 ²⁰²².
Position of Brunei 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 Brunei

Referencies:

1. The Most Criminal Countries ²⁰²² by Numbeo

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

   Brunei	'Crime Index' value is	29.55
   Saudi Arabia	'Crime Index' value is	24.62