Statement:
The level of criminal activities is higher in Mexico than in Oman

In the The Most Criminal Countries rating Mexico holds position #42 ²⁰²² out of 139 and Oman is #133 out of 139 ²⁰²².
Position of Mexico is worse than position of Oman.
Oman 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 Mexico

Referencies:

1. The Most Criminal Countries ²⁰²² by Numbeo

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

   Mexico	'Crime Index' value is	53.90
   Oman	'Crime Index' value is	19.72