Statement:
The level of criminal activities is lower in New Zealand than in Papua New Guinea

In the The Most Criminal Countries rating New Zealand holds position #77 2022 out of 139 and Papua New Guinea is #2 out of 139 2022.
Position of New Zealand is better than position of Papua New Guinea.
Papua New Guinea 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 New Zealand

Referencies:

  1. The Most Criminal Countries 2022 by Numbeo
    The countries in the rating sorted by 'Crime Index' in descending order.
    New Zealand 'Crime Index' value is 44.61
    Papua New Guinea 'Crime Index' value is 80.26