Comment by Kim_Bruning

Can you be more specific? Which individuals and why (not)?

Note that eg if you're from (picking two random countries) Nepal and commit a crime in Italy, then Italy still has jurisdiction. Italian police can arrest you. [1]

Also, there's certain crimes that any country is allowed to arrest you for, for instance piracy on the high seas.

[1] Also explicitly taken into account in the Rome statue 12(2)(a) https://legal.un.org/icc/statute/99_corr/cstatute.htm