Statement:
The level of criminal activities is higher in Nigeria than in United Kingdom

In the The Most Criminal Countries rating Nigeria holds position #17 2022 out of 139 and United Kingdom is #65 out of 139 2022.
Position of Nigeria is worse than position of United Kingdom.
Nigeria is leader of the "The Most Criminal Countries" rating. So it is wise to avoid visiting the country or, at least, you need to take additional actions to protect your life and belongings, compared to United Kingdom

Referencies:

  1. The Most Criminal Countries 2022 by Numbeo
    The countries in the rating sorted by 'Crime Index' in descending order.
    Nigeria 'Crime Index' value is 64.09
    United Kingdom 'Crime Index' value is 46.62